Feeling regret

My baby is 7 weeks old and the last week to now I have been struggling deeply with the feeling of regret. I have no bonding feeling and everytime he cries I get very upset. I so desperately want my life back because now I have to switch jobs to be on first shift. I really want to put him up for adoption but my husband doesn’t and I am so stressed about it all. I never wanted kids but last year something changed and I thought it was a good idea. I am on antidepressants but I’m not sure that will do much for me.