Husband doesn't want our new baby

Idk what to do my husband and i have been married 11 years, been together 17.. We were ttc or 5 years and got pregnant last year and our baby is now 6 weeks.

At least 4 or 5 times since the birth my Husband has said he regrets the baby and doesn't want him, doesnt love him, wishes he was never born. Wants life to go back to how it was. Its always when hes frustrated with the baby crying. I went out for 45 mins today and he couldnt handle thr crying and put him im a different room. He said when he hears him screaming and crying and can't make it stop he wants to hurt the baby but knows he cant so he puts him somewhere he cant hear him. This is the 2nd time hes done this when I go out for errands. He is supposed to be watching the baby when i go back to work in a week and a half. I feel like obviously I cant trust him to watch the baby. So now i think my only option is fulltime daycare..even though my Husband will be home all day.. He works weekends i work weekdays. Other option is to leave my husband and me and the baby will be on our own.

But also my husband struggles with mental health issues including depression and suicidal thoughts and refuses to get help. If we were to leave I'm almost positive he would take his life. He's told me I'm the only reason he hasn't done it yet. I feel sick about this. I love this baby more than anything and want the best for him im so sad his dad is like this. Most the time my husband is good with the baby, holding him, changing diapers, feeding him. Playing with him and giving him baths. Most the time he seems to love him but thats when im around to deal with the hard parts like when the baby cries.