What to do

Reoccurring depression it never lasts only a day or 2 every few weeks and on and off every few days I hate it I cry and cry want to be alone hate everyone idk what to do any more it's starting to put a strain on my relationship, I use to be super depressed for yrs about 4/5 yrs ago I've never told my dr about this happening I'm tired of everyone I talk to saying the baby just makes me emotional I know that 🙄 I also know I been depressed and I get stuck in it for a long time I'm about to be 6 months in a few days & I want to be ok before baby gets here it's just hard with no support I know I have to do this alone my family could careless and I'm trying to be ok with that . Also I've been putting off seeing a dr about this because I'd rather wait till I have the baby to be put on meds if that's what it comes too.. (also my mom has a lot of psych problems) advice??