I agree with the others. Its time to talk to him about your sex life. Some men after their women have babies, look at them as moms instead of a sex partner. Could you have gained weight and he's not attracted? Could he be having an affair with someone else? If your talk doesn't produce any results, invest in a good vibrator, a porno movie you like to watch, and take care of yourself if you don't want out of the relationship. Cheating isn't the way to go. If you want to cheat, then leave the relationship.