FLMA leave for dads

FTM. I am due any day now and my husband is not wanting to use FLMA like we discussed. He is wanting to just use some of this vacation time and work half days. He only has 2 vacation days.... do you think this is realistic?

Everyone up until this point has said I will need lots of help the first 2 weeks. With him not being here for 5 hours kind of worries me.

Had I know he wanted to do this I would have made arrangements to have a family member come help.

Any advice?