Bf doesn’t wash hands😡

My bf never washes his hands when he comes in from being out all day. It really pisses me off & I always get on him about it. Sometimes he’ll say he washed them before he left work. No! Thats not good enough because you’ve touched a few things between then & coming home. I’m about to have our baby & I fear whenever I’m not looking or busy that he’ll come home & pick her up without washing his hands. Idk how to get him to make this a habit