This article has been reviewed by Sheri Rodriguez, IBCLC. However, this review does not constitute a warranty of medical accuracy and is not intended as medical advice. Always consult a qualified healthcare provider or lactation consultant before making decisions about your health or your child’s health.
Deciding when—or if—to have another baby is a deeply personal choice. When you’re still breastfeeding, the decision can feel even more complex. How does extended nursing impact fertility? What role does weaning play in conception? And how do you balance the needs of a growing family? These are all important questions to consider when thinking about baby number two.
How Breastfeeding Affects Fertility
Breastfeeding can naturally suppress ovulation due to the hormonal effects of prolactin, the hormone responsible for milk production. According to the WHO, exclusive breastfeeding often delays the return of a menstrual cycle, especially if feedings are frequent and there are no long gaps between sessions.
However, lactational amenorrhea (the absence of periods due to breastfeeding) is not a foolproof birth control method. The return of fertility varies widely from person to person. Some parents conceive while breastfeeding without ever having a period, while others experience a long delay before ovulation resumes.
Getting Pregnant While Breastfeeding: Family Planning Considerations
If you’re considering baby #2, it helps to evaluate:
- Your menstrual cycle – If your period hasn’t returned, you may need to monitor ovulation signs or consider gentle weaning to encourage hormonal shifts.
- Your body’s readiness – Pregnancy requires energy, and breastfeeding already demands a lot from you. Ensuring you feel physically well is important before conceiving again.
- Feeding frequency – The AAP notes that reducing night feeds and introducing solids can signal the body to restart ovulation.
Weaning or Continuing to Breastfeed?
Many parents wonder if they need to fully wean before trying for another baby. The short answer: not necessarily.
- Partial Weaning: Cutting back on feeds, especially at night, can help fertility return while still maintaining a nursing relationship.
- Breastfeeding Through Pregnancy: Some parents continue to nurse throughout pregnancy and even tandem feed a newborn and an older child. The key is ensuring you’re consuming enough calories and nutrients to support both pregnancy and breastfeeding.
Preparing for Another Baby
- Check in with your body – Are you feeling strong, rested (as much as possible), and emotionally ready for another pregnancy?
- Talk to your partner – Family planning is a shared decision, and making sure you both feel aligned is key.
- Talk to a doctor—They can best assess your personal medical situation and how another pregnancy will impact your body.
- Think about logistics – How will breastfeeding fit into your new family dynamic? Will you continue nursing, wean, or take a flexible approach?
Adding to your family is a big step, and there’s no right or wrong timeline. Trust your instincts, listen to your body, and make the choice that feels best for you.
Getting pregnant while breastfeeding is possible, but the timing varies from person to person. Breastfeeding can delay ovulation and menstruation, yet fertility may return before you expect it.
