depressed and pregnant

I'm positive I would be diagnosed with depression but I put on a happy face around my doctors and others I wanna get help but I can't take the risk of my ex trying to use that against me to try to take my baby or something his other bm has previous CPS cases his mom is a social worker so that's how they found out and they use that to there advantage when they go to court as well as the fact he knew she did drugs not while pregnant but he saw her take some stuff one time and I'm sure she still does stuff but abywgo I don't wanna give him any ammo to ever be able to use against me. I love his mom to death even since our break up but that's her son I never know she could turn on me so I don't tell her a lot of my emotions