What is the perfect age gap between kids? (2024)

Is there a perfect age gap between siblings?

Too close or too spaced out, what is the best gap between siblings?

Perfect age gap?

  • Is there one?

What is the perfect age gap between kids? (1)

As your firstbaby starts to grow, your mind can often wander into thinking about having another baby. But what is the best age gap to aim for between siblings?

Ultimately, you can’t plan that exactly (and sadly miscarriage and fertility issues can affect families birth spacing plans).Your thoughts may also depend on whether you have two the same sex or one of each as to how the family dynamic works.

We take a look at the practical pros and cons of different age gaps.

Less than a year age gap

Nine to 10 months age gap is obviously the smallest gap you can have, and can be quite tough but rewarding at the same time.

Pros

  • The children are so close in age they will learn a lot about the world together.
  • If they’re birthdays fall right, you could find they are in the same class which means they can share a lot together like twins.
  • Being so close in age, they are more likely to enjoy the same toys and games. They may even find it easier to entertain themselves without you always having to be part of it, especially as they grow.

Cons

  • This age gap would mean soon after your give birth, you fall pregnant again which means coping with pregnancy symptoms such as morning sickness and fatigue while looking after a newborn and getting through all the sleepless nights, pretty tough!
  • When you are getting close to your due date, your eldest will only be around seven or eight months which is too young to understand what is going on and is often a clingy stage for many babies. Having to leave him to go into hospital to have your new one could be tough on him, and fill you with mummy guilt.
  • Once your second baby has arrived, you suddenly have a newborn with all the regular demands to contend with but also another under one who still needs an awful lot of your attention and it could feel hard to split yourself in half to cater for both their needs all the time.

12 to 18 month age gap

Pros

  • Children with this age gap still are very close in age so have all the benefits of enjoying a daily playmate as the eldest is still too young to have developed the feelings of sibling rivalry which means they are delighted to have a little play mate.
  • Keeping the age gap small can also be a benefit for your time off work. It can make sense for one parent to stay home for a period of time to be with the young children, and ease back into work once both are that bit older rather than going back to work after one only to be there a short time before off again with number two.

Cons

  • Having two this close in age has similar issues to less than a year gap. You have the pressure of two young ones needing so much of your time and it can take its toll on a mum trying to achieve this.
  • If your youngest is only 18 months old when your new baby arrives, you are pretty likely to have two lots of nappies to deal with on a daily basis. Plus you may be breastfeeding your first when your second comes along and find you feel the need to wean your eldest off the breast before you’re both really ready.
  • The younger sibling often grows up quicker when the older sibling is close in age so they may not be a ‘baby’ for long.

Two year age gap

Pros

  • This is often a popular age gap as your body has had time to recover from the first birth and you are more than likely not breastfeeding anymore or changing nappies, yet not far enough beyond it that it feels too hard to start it all over again.
  • This age gap can be good for your eldest too as he will be getting to a more independent stage and not needing quite as much of your time, and may even be starting playgroup a few hours a week.
  • This is often quite a good age gap for practical reasons too such as passing down clothes and toys as well as having a ready-made nursery with cot and changing table all ready to be used again.

Cons

  • It can be hard to explain to your toddler who is slap bang into the terrible twos that new addition is joining the family. Sibling rivalry will be at its height during their second year, so welcoming a sibling may not be entirely smooth running.

Three years and older

  • Sibling rivalry may be minimised if you wait three years or more before having your second child. Your eldest has grown past the worst of this stage and will be old enough to understand what is going on, and can even be helpful when your new baby arrives.
  • A bigger age gap means each child has more one on one time with mum. Your eldest has had at least three years of you all to himself and is off exploring new challenges of nursery and school allowing you a bit more time to bond with your new baby without feeling your eldest is suffering.

Cons

  • The larger age gap can mean there is not so much interaction with the siblings as they are likely to be at very different stages meaning they don’t always want to play together. A less close bond between them could be the result in the early years particularly.
  • It can be a shock to parents systems as they may be well passed the nappy stage, sleepless nights, and be tough to start all that again from scratch.

There’s no doubt that they are pros and cons to different age gaps so the moral of this story is there is no ‘perfect’ time to have baby number two.

Recent trends show that many families wait until the eldest starts school to have another baby, not necessarily a preferred choice of age gap but practicalities of paying two lots of childcare may be unrealistic for some.

Ultimately, whichever age group your children have, it won’t make any difference to a their relationship once they grow up, after all, have you ever heard anyone say their life was hugely affected by the birth of their sibling? Probably not.

What is the perfect age gap between kids? (2024)

FAQs

What is the perfect age gap between kids? ›

Across many different studies, a shorter age gap or a longer age gap is associated with worse health and developmental outcomes. Research suggests that an age gap of 27 to 32 months may be associated with the best health outcomes for mother and child.

What is the best age gap between first and second child? ›

Based on the study findings, they suggest the optimal time between giving birth and getting pregnant again is 18 months, with a range of 12 to 24 months. That said, many experts still adhere to the recommendation of 18 to 24 months.

What age gap is best for siblings? ›

After analysing many different studies on sibling age gaps, she says there is no clear "ideal age gap". But her overall translation says research suggests an age gap of "27 to 32 months may be associated with the best health outcomes for mother and child."

What is the best spacing between children? ›

What's the best interval between pregnancies? To reduce the risk of pregnancy complications and other health problems, research suggests waiting 18 to 24 months but less than five years after a live birth before attempting your next pregnancy.

What is the best age to have second child? ›

  • 2 to 4 Years Apart. Some parents say that spacing kids apart by 2 to 4 years is the sweet spot, and there are definitely some great pros to this timeline like having more time with each child. ...
  • 5 Years Apart or More. For some families, spacing children by five or more years sounds perfect.
Mar 13, 2024

Is a 2 or 3 year age gap better? ›

Possible benefits of a 2-year age gap

When it comes to how prepared your body is for the next baby, a two-year gap is healthier for you than waiting less time: Your body has had enough time to bounce back from the last pregnancy.

How soon is too soon to have a second baby? ›

Getting pregnant again before 18 months increases the risk for certain health problems for your baby, including: Preterm birth. This means your baby is born before 37 weeks of pregnancy, which is too soon.

Is it hard having two babies under 2? ›

In the early days of parenting two under two, juggling the priorities and needs of your children can be tricky. It's good to keep in mind that your toddler is still little too and may need help adjusting to life in a bigger family.

What is the best number of kids to have? ›

Bar chart showing what the ideal number of children Americans think a family should have from a Gallup poll conducted in June and July, 2023. The plurality, 44% say the ideal number is two children, 29% say it is three, 12% say four, 3% saying one and 2% each saying zero, five, or six or more.

What age is best to have a baby? ›

A woman's peak reproductive years are between the late teens and late 20s. By age 30, fertility (the ability to get pregnant) starts to decline. This decline happens faster once you reach your mid-30s.

How long should a 2 year old be away from his mother? ›

Your custody schedule should give your toddler frequent contact with both parents and provide both parents opportunities to feed, bathe, play with, read to, arrange playdates for, and put the toddler to sleep. Toddlers can be away from either parent for 2 or 3 days.

Is a 7 year age gap too much for siblings? ›

There is no evidence that large age gaps are bad for kids or parents, so you can put that one to rest. As for whether your choice is normal or acceptable to others, remember that this is your family and your choice. And when it comes down to it, whether it works for you is what matters most here.

How do age gaps affect siblings? ›

Children with many years between them are less likely to have intense rivalries and more likely to listen to each other: A classic study from 1973 found that younger siblings are more likely to take the advice of a sibling who is four years older than one who is just two years older.

Is 2nd pregnancy easier? ›

The thinking generally is that second pregnancies should be easier. Your body knows what to do and prepares to do it earlier. Second pregnancies aren't always easier though. There are a few factors that will play a role in your pregnancy.

Is 37 a good age to have a second baby? ›

37 is not very old and your odds are good for a healthy pregnancy. As long as you and your husband are healthy and fit, I would encourage you to try! Having two young children while you are in your 40s is not a breeze, but I do believe that children keep you young.

Is it OK to have 10 years gap between two kids? ›

There is no perfect gap that suits absolutely everyone and every age gap has its pros and cons. So it's up to you and your family to decide when the time is right for you. And remember, however much you think ahead, babies don't always turn up as planned!

Is a 7 year age gap too much? ›

Five to seven years is generally an acceptable age difference. However, there's no single right answer here, as it depends on the situation. As long as both partners are consenting adults, there's nothing preventing you from dating someone significantly older or younger than you are.

Is 35 too old to have a second baby? ›

35 is a fairly average age to have a baby tbh, most of my friends were mid-30s and I don't know anyone who intentionally had a baby under 30. Not now, but I did have another child when I was 36. It all worked out ok and no problems from being that age if that's what you mean.

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