PPD or just my hormones?

Idk what it is lately, I’ve been on the verge of crying all the time. I had my baby 7 months ago and I’m now 24 weeks pregnant. I’ve been just super sad lately. I know I’m definitely overwhelmed sometimes but lately it just feels like anything will make me cry. I feel so lonely and I’m trying to reach out to my friends but it seems like they’re all busy. My boyfriend doesn’t get it. He thinks I’m just being emotional. Even before pregnancy, I was already an emotional person but now it’s like I don’t feel like being here anymore. I know I would never do anything to hurt myself because I would never leave my kids.. but I just feel like it wouldn’t matter if I was gone.

I just really needed to vent somewhere because I can’t tell anyone without bursting into tears right now..