Finasteride or dutasteride while wife is preggo?

[Bigbadwolf04]

Wife is pregnant with a boy. She's at 22 weeks. Wanting to hop on fin or dut for hairloss. Tried fin two years ago for a year and didn't notice much so was thinking of trying dut. I know this stuff can be really bad for pregnant women so wanted to see what you guys think of it would be safe to take orally?
I would use a condom but other than that is there any other exposure risks. Also should I use fin while she's pregnant and then switch after since it has a much shorter half life?