Advice

Tiffany • I`m 25 have 2 children already and really want another baby with my husband
So my husband has been in the national guard for 8 years 7 months well we have been together for 4 years and married for 3 years he was deplyed for 9 months back in 2012 came home in 2013 anyways back in September I found out he has been cheating on me with several different women and now I find out this has went on since he was deployed.. Well right after I confronted him and worked threw it I found out I am pregnant.. Now he's going off to school in V.A. for 6 months and should be home right before baby is due. I feel like he's going to cheat again even though he says he's not going to and that he doesn't want to lose me and our kids but I can't help but feel like it's going to happen again....what should I do... This is our 3rd child and I'm just scared I'll have to start my life over again if it happens again because I will not put my self threw a marriage that's not working anymore.. I can forgive him once but not twice....