Antenatal depression? Experience please

I’m a FTM and currently 6 weeks 6 days pregnant and for the last week I’ve been spiraling deeply with anxiety as well as depression. This is something that I really deeply wanted and now I’m scared that I messed up because I feel like crap and like I’m losing myself. Of course on top of it , it doesn’t help that I’m constantly nauseous the last 6 days and can barely eat. I talked to my OB who prescribed Wellbutrin and I’ve been on it for 4 days. When does this get better, is this normal?