Are there many women that have taken ssri's throughout pregnancy and child birth?

Yes: There are registries for many of the different ssris. The fact that persistent pulmonary hypertension may be slightly increased to 1/500 has come under question. There is a 1.6% chance that the newborn will have increased irritability and poor feeding for 3-5 days.

Yes: Yes, and most of the time babies come out ok...Although use is not recommended but some patients need that med.