My DH doesn't want to have to sex.(?)

So last night I really wanted to have sex, but he was in his phone the whole night so because I couldn't get his attention I ask him if we could have sex .. And he laughed.. So I went to bed..  Like I know he doesn't like me to ask .. But what else can I do when he's obviously not interested..   I'm n my fertile window too.. So frustrating ...  I dont know what to do