Taking anti depressants while pregnant?

Britney • I'm a happily married to the love of my life and I'm a 27 year old who is graduating university soon this year and is hoping to start having some beautiful babies soon! We have had one pregnancy and miscarriage at 7 weeks so far hoping for a rainbow baby
My doctor said it's totally fine to take Prozac which I take for depression and anxiety while your ttcing and pregnant he says their are no known affects on the baby and it has been around forvever but I'm so nervous to see any medications! What do u guys think?should I trust him? It's been really hard without my medication because I have a natural chemical imbalance but I was willing to be super anxiois and depressed in order to have a healthy baby