How to Have a Baby in Sims 4: Pregnancy, Twins and Adoption

To have a baby in The Sims 4, build a romantic relationship between two Sims who can have a child together, then click one of them and choose Try for Baby on a bed. Take a pregnancy test at a toilet to check, and the baby arrives about three Sim days later. You can also adopt through the phone or computer for §1,000, or have a Science Baby from the phone, with no partner needed.

Last checked: November 9, 2026 (base game, version 1.129).

Who can have a baby

• Ages: Young Adult and Adult Sims can get pregnant. Teens can't have babies, and Elders can't get pregnant, though by default an Elder can still get another Sim pregnant.
• Settings in Create a Sim: every Sim has options for whether they can get pregnant and whether they can get others pregnant. Check them under the gender options in Create a Sim. Two Sims of any gender can have a biological child, as long as one can get pregnant and the other can get others pregnant.
• Space: a household holds up to eight Sims. If yours is full, Try for Baby won't appear.
• Relationship: the two Sims don't need to be married, but they need a strong romantic relationship.

How to get pregnant with Try for Baby

1. Raise the romance between the two Sims with flirty interactions until the romance bar is well filled.
2. Click the partner and look under the Romance options, or click a bed both can use.
3. Choose Try for Baby. Your Sims will head to bed together.
4. Afterwards, click a toilet and choose Take Pregnancy Test, or simply wait.

A Try for Baby attempt usually works, but not every time. If your Sim isn't pregnant, the test says so and you can try again. If you skip the test, a notification confirms the pregnancy within a day.

Regular WooHoo doesn't cause pregnancy in the base game. You need to choose Try for Baby.

How long pregnancy lasts in The Sims 4

Pregnancy lasts about three Sim days, with each trimester taking roughly one day. The bump grows with each trimester, and labor can start a few hours earlier or later than expected.

During pregnancy your Sim may get morning sickness and feel uncomfortable at times. A pregnancy moodlet shows the current trimester, so you can track how close the birth is.

Influence boy or girl

Babies are boy or girl at random, but you can tip the odds while your Sim is pregnant:

These raise the chances; they don't guarantee the result.

Giving birth

When labor starts, a notification appears and your Sim becomes very uncomfortable. You have two options:

• Home birth: place a bassinet on the lot. Your Sim gives birth at the bassinet, and you can also click the bassinet and choose Have Baby to speed things up.
• Hospital birth: if you own the Get to Work expansion pack, click the pregnant Sim and choose to have the baby at the hospital. The Sim leaves the lot and comes home with the baby.

Either way, you then name the new Sim, or Sims if you have more than one.

How to have twins or triplets

Twins and triplets are rare by default. The most reliable way to raise the odds is the Fertile reward trait, which costs 3,000 satisfaction points in the Rewards Store. It makes Try for Baby more likely to work and multiples more likely. Giving the trait to both parents raises the chances further.

You earn satisfaction points by completing aspirations and wants. If you'd rather not wait, the cheat sims.give_satisfaction_points 3000 adds them after you enable testingcheats. See the full Sims 4 cheats list for how to use it.

Adoption

Any Young Adult or older Sim can adopt, single or in a couple:

1. Click the computer or the Sim's phone.
2. Go to the Household options and choose Adopt.
3. Pick a child from the list and pay the §1,000 adoption fee.
4. Your Sim leaves for a short time and returns with the new family member, whom you can rename.

Adopted children count as full family members, just like biological ones, and appear on the family tree. The only difference is genetics: they don't inherit their parents' looks. You can adopt one child at a time, but you can repeat the process as long as you can pay each fee.

Science Baby

A free update in March 2023 added a Science Baby option on the phone. It lets a single Sim have a baby alone, or two Sims, such as friends, combine their genetics without a romantic relationship.

Caring for newborns and infants

New babies start as newborns for the first couple of days, then grow into infants, a life stage added in that same March 2023 update.

• Newborns stay in their bassinet or in a caregiver's arms. Teens and older Sims can feed them and change diapers. The birth parent can breastfeed; anyone else bottle-feeds.
• Infants can crawl, play and explore. On top of hunger, diaper and sleep care, they have an Attention need, so spend time with them. Give them a crib so they sleep well.
• Aging up early: click the bassinet and choose Age Up if you want to skip ahead.
• Going out: babies can't be left home alone. If no adult stays behind and you haven't hired a nanny through the phone, they go to daycare while you're away.

If a baby, toddler or child is badly neglected, social services takes them away, and you can't get them back. Keep an eye on hunger and attention, especially with twins.

Frequently asked questions

How do you get pregnant in Sims 4?

Build a strong romantic relationship between two Sims who can have a child together, then choose Try for Baby from the partner or a bed. Take a pregnancy test at a toilet to check. If it fails, try again.

How long is pregnancy in Sims 4?

Pregnancy lasts about three Sim days, with roughly one day per trimester. Labor can start a few hours early or late.

How do you have twins in Sims 4?

Buy the Fertile reward trait for 3,000 satisfaction points before trying for a baby. It raises the chances of conception and of twins or triplets, and the effect is stronger if both parents have it. Multiples are still not guaranteed.

How do you adopt in Sims 4?

Use the computer or phone, open the Household options and choose Adopt. Pick a child and pay the §1,000 fee. Your Sim doesn't need to be married or in a relationship.

Why can't my Sims try for a baby?

The usual reasons are a romance bar that isn't high enough, a full household of eight Sims, an age that can't have children, or Create a Sim settings that don't let either Sim get the other pregnant. Check each one and try again.

Can you have a baby without a partner in Sims 4?

Yes. Use the phone to have a Science Baby on your own, or adopt a child through the phone or computer for §1,000. Neither option requires a romantic partner.