In early pregnancy, small and undeveloped follicles populate the ovaries (Govan, 1968). After 8–10 weeks gestation, follicular growth and atresia continue until term. The oocytes per se, however, are functionally intact.

How many follicles do you have during pregnancy?

Anywhere between 8 and 15 follicles is considered an acceptable amount. During an egg retrieval, your doctor will aspirate the follicles with an ultrasound-guided needle. Every follicle will not necessarily contain a quality egg.

What do follicles do during pregnancy?

If you have lots of follicles, then you have the potential to release more eggs increasing the chance that one of those eggs will be healthy enough to result in a successful pregnancy.