Need Advice!

So I'm 12 weeks pregnant right now. It was unplanned, but I am happy about it. My husband not so much. He said he didn't really want kids right now because he doesn't feel he would make a good father at the moment and wanted to get his mental health together first. Well this happened. He doesn't blame me for it, but I'm starting to feel maybe deep down he does. He won't sleep with me anymore. He is depressed ALL the time. He didn't go to work for a full day because he was too depressed to get out of bed. He's bipolar and I feel like I put him in a depressive state. I'm hoping he will fall in love with the baby once he sees is, but he is so depressed... I'm honestly considering an abortion, just because my husband is so in depression, and I'm scared it won't get better after the baby is here. I don't know what to do...