# Periods after birth and breastfeeding

> When your cycle comes back, and when you can get pregnant again

Category: Pregnancy & postpartum · 4 min read · Written by the Splash team · Sources checked October 2026
URL: https://splash.care/learn/pregnancy-postpartum/postpartum-periods

## Quick answer

- Periods can return from about 5 to 6 weeks if you are not fully breastfeeding.
- You ovulate before your first period, so pregnancy is possible from 3 weeks.
- Breastfeeding works as contraception only under strict conditions.
- Use contraception if you want to avoid pregnancy; the app is not contraception.

One of the most common questions after birth: when will my period come back? It depends a lot on how you feed your baby, and everyone is different.

- **Bottle feeding, or a mix of bottle and breast:** the NHS says your first period could start as soon as 5 to 6 weeks after birth.
- **Fully breastfeeding, including at night:** your periods may not return until you cut down feeds, wean, or start formula or solids.

Here is the big one: you [ovulate](https://splash.care/learn/phases/ovulation) **before** your first period. So you can get [pregnant](https://splash.care/learn/fertility-ttc/early-pregnancy-signs) before you have had a period at all.

**3 weeks** The NHS says you can get pregnant from 3 weeks (21 days) after birth, even if breastfeeding and periods have not returned

**Myth:** You cannot get pregnant while breastfeeding.

**Fact:** Breastfeeding can delay ovulation, but it only works as contraception (LAM) if your baby is under 6 months, you are feeding only breast milk day and night, and your periods have not returned (even spotting counts). If any of those stop being true, use another method.

Your first few cycles may be [irregular](https://splash.care/learn/cycle-basics/irregular-cycles), heavier or lighter than before, and the first period is often heavier. [Tracking](https://splash.care/learn/cycle-basics/tracking-101) them helps you see your new normal. If you are not sure whether something is a period or [lochia](https://splash.care/learn/glossary/lochia), the first 6 to 8 weeks of bleeding is most likely lochia.

**Quick quiz:** How soon after birth can you get pregnant again?

1. Only after your first period
2. From about 3 weeks
3. Not until the 6-week check

Answer: From about 3 weeks. The NHS says ovulation can happen before your first period, so you can get pregnant from 3 weeks after birth.

> This app can help you track your returning cycle, but it is not contraception. The NHS says to start contraception within 21 days of giving birth if you do not want to get pregnant. The implant, injection, progestogen-only pill and condoms can all be started straight after birth, including while breastfeeding. A coil is fitted within 48 hours of birth or from 4 weeks. Methods with oestrogen (the combined pill, patch and ring) wait until at least 3 weeks, or 6 weeks if you are breastfeeding. It is also usually recommended to wait at least 12 months after a birth before becoming pregnant again.

> **Splash says:** when your period returns, switch back to cycle tracking and log a few months. Patterns may take a while to settle.

### When to see a doctor

See a GP if your periods are very heavy (soaking through a pad or tampon every 1 to 2 hours, or large clots), very painful, or have not returned a few months after you stop breastfeeding. Also see a GP for bleeding with a temperature over 38C or an unusual smell.

## Sources

1. [NHS: Your body after the birth](https://www.nhs.uk/pregnancy/labour-and-birth/your-body/)
2. [NHS: Sex and contraception after birth](https://www.nhs.uk/baby/support-and-services/sex-and-contraception-after-birth/)
3. [NHS: Breastfeeding](https://www.nhs.uk/baby/breastfeeding-and-bottle-feeding/breastfeeding/)
4. [NHS: Early days after birth](https://www.nhs.uk/pregnancy/labour-and-birth/early-days/)

This is general information, not medical advice. Splash can’t diagnose. If you’re worried, talk to a GP, pharmacist or sexual health clinic. In an emergency call 999 (UK) or 911 (US).