I first want to say from a professional stand point, your doctor (as your OB/GYN) has two patients to look out for. 1. you 2. baby. So, they are probably trying to factor in the risks and benefits to both of you.
With that said, I personally had to be on antidepressants through my second pregnancy. My doctor prescribed Wellbutrin SR for me. At the time (about 1 year ago), Wellbutrin was considered to be the safest of antidepressants for use in pregnancy. Research may say something different now, as the medical field changes so rapidly. I had absolutely no problems due to the antidepressants during my pregnancy.
Once I gave birth to my daughter I was switched to Zoloft -- because I chose to breastfeed. I had some people tell me to just not breastfeed so I could take ANY antidepressant, but that was not an option for me. Not being able to breastfeed my daughter would have made me spiral down even deeper (that is just me). So, I did breastfeed and took Zoloft. Unfortunately, my daughter started to have 'seizure-like' movements...which can be a side effect of Zoloft, so I tapered off (with a doctors guidance) and have not gone on anything. I have been ok most of the time, but often feel like I 'could use something to feel more 'normal''. But I'm making it. Exercise has been a big help.
But I know that after having my first baby, it is very scary how deeply depressed a person can get -- and how real postpartum depression is. And had I not gotten help when I did... only God knows what may have happened. So, if you need the help, then get it now. You know yourself far better than anyone else.
So...I think there is definitely a time and place for the use of antidepressants. And other times that behavioural/lifestyle changes can help. Only you, the ob/gyn, and a good psychologist/pyschiatrist can make the best decision for your situation.
Finally, I just want you know that there are times that we can't just 'pull ourselves out of the pit.' Depression is a real illness, just like diabetes. It is an illness based on hormonal imbalance...just like diabetes. So, no matter what some people say -- don't let them guilt you into not taking medication if you need it. These people would never dream to tell you not to take insulin if you had diabetes and needed that...
Good luck with finding the right treatment for your situation.
A little about me:
I am a 35 yr. old, mother of two -- a girl (14 mos.) & a boy (4 yrs. old). I previously worked in the medical field, until having children and have chosen to stay home.