I’m not sure if this is postpartum

I’ve been on this high since becoming a mom. I’ve been super happy and excited about this adjustment for seven months, thinking I’ve dodged a bullet from PPD. However, one day it just felt like this dark cloud appeared and never left. It was random. I’ve been trying to figure out why I’m feeling like this. In no way do I have any thoughts about harming myself or my child, I just feel depressed. I’m a stay at home mom that doesn’t have health care anymore. Neither can we afford it at this point. If I could start back working just to have healthcare, I would but I can’t afford daycare, a nanny, or babysitter. Everyone sorta has their own life so I have no relative to watch my son. I have no idea what direction to go or how to fix it.