Taking baby to therapist? PPD

I finally realized I am struggling with PPD. I was ready to divorce my husband because I absolutely hate him (for no reason. He's done literally nothing wrong), I have insomnia & awful anxiety. It's really taking a toll on me & especially my marriage. I found a therapist I'm going to go (I've been to one before when I struggled with depression in high school but this is a new one because I don't live in the same state now) but the problem is i have my 5 month old. I'm a SAHM & just not ready for a sitter. I don't even let my mom watch him & I don't want her to. Is it weird to bring him with me? I really want to go to help get better but the thought of leaving him makes me want to just forget the whole thing entirely.