depression

Hi guys I was wondering if anyone else has dealt with depression in early pregnancy, I can be fine one minute then as time goes on I get severe low spells.
With my first pregnancy I never had this atall, I was fine but now I just feel really alone and it's not a nice feeling atall I just put a smile on my face and get on with it. My partner has been so supportive but sometimes I just feel like I can't talk to anyone and I was wondering if anyone else has experienced this early on