depression during pregnancy or even afterwards is called perinatal depression and in reality a lot of women do get it but it is undiagnosed a lot. I had it in my first pregnancy and it led to very bad PND as it was untreated. However my second pregnancy the perinatal depression was worse and my midwife picked up on it.

The hopital I was at had a mental health team that worked in the maternity unit and they looked after me. It is safe to take meds if you need during pregnancy and they have a lot of very helpful suggestions for coping with it. It doesn't matter where the depression is coming from, home, family, DH, friends, work or baby, but it is a sign that you need a little bit more help and support at this time.

I totally understand how you feel and if you need someone to chat to, just pm me xxx