Adultery or abandonment ...Can i accuse my husband of this?

I found out that my husband was cheating on me after he left me. It was all just so confusing as to why he was they way he was the last moths we were together but at the end it was all clear. I had already caught him talking to the same girl "he started dating" his now "ex girlfriend". A week later after he left me he was dating this girl. He left me 8 months pregnant at the time i had no job or any resources. He also took my daughter around that girl within like two weeks after he left me. They had photos of the 3 of them together. We have two daughters together so the one he had around his "girlfriend" was are older daughter. Now Can i accuse him of abandoment/adultery. Also can i do anything to keep him from taking my daughters near that girl at least meanwhile we get divorced?