Can I do IVF while breastfeeding with endometriosis?

Yes—IVF can be done while you’re still breastfeeding in some situations, but it usually isn’t as simple as “go ahead and start.” Breastfeeding shifts hormones (especially prolactin) and can suppress ovulation, which may affect baseline testing, medication response, and cycle scheduling. Many fertility clinics prefer you to be fully weaned before ovarian stimulation and egg retrieval, both for medication-safety reasons and to make your cycle more predictable.

Endometriosis adds an extra layer: IVF protocols can temporarily raise estrogen, and some patients worry that stimulation will “feed” endometriosis or flare pain. For many people, IVF does not appear to cause dramatic short-term progression, but if you have significant symptoms or deep disease, stimulation planning matters—and symptom control during fertility treatment becomes part of the strategy, not an afterthought. If you’re trying to balance breastfeeding, fertility goals, and endometriosis pain, reach out to our team; we can review your history and help you think through timing, whether surgery has a role, and how to coordinate with your fertility clinic in a way that protects both your quality of life and your pregnancy goals.