I took prozac (and a high dose) with the blessing of my OBGYN, RE, and shrink. All researched it and said it was fine. Had an ideal 40 week pg with 8+ lb healthy child. Taking prozac (or whatever approved AD) is very common in pg, the reason I stuck w/ prozac is because it is one of the oldest and most studied SSRIs for pregnancy. I wasn't taking it to help my lining though, it was to help depression/anxiety.