Prozac or Lexapro?!

So I'm semi freaking out, my Primary Dr prescribed me to Prozac 10 MG at the beginning of my pregnancy. He said it was category C and since I had previously taken this medication with success, thats what he felt I should be on. I obviously trusted this and have been taking it for about 12 weeks. Now I am 17 weeks and my OB told me yesterday that Prozac is a lesser recommend med for pregnant women because it can cause deformities! That and plus I am still suffering from depression. Not nearly as severe as before the prozac but still life altering. He switched me to Lexapro 10 MG, my husband and I were relieved because of the risks Prozac carried. Then I researched both drugs and found that Prozac is worst for your first trimester (YIKES) and Lexapro is most dangerous in 3rd trimester (great). Plus switching meds mid pregnancy is not recommended. Unfortunately not taking any medication is not an option for me and I hate that! Now my question is I trust my OB... More so than my primary family doc. But many drs push a specific drug per pharmaceutical reps, for money. Now I'm worried this could be the case and I'm putting my baby at risk by listening to all these Drs different opinions. Any input greatly appreciated! Thank you!