Please I need advice or some positive vibes

I just need some positive vibes please... My life feels like it's falling apart, I'm completely broken and I'm really struggling at the moment. My husband works out of town and I just found out he's been lying to me. This isn't the first time, but it's going to be the last. Just so y'all have an idea of the situation without going into everything... I have a feeling he's been cheating. He was suppose to be in one place this week and I found out his back in the same town where I suspected he was messing with another girl. I'm seriously contemplating divorce, I'm just scared though. I'm 5 months pregnant and I just need to hear some positive story that all will work out in the end. I have 2 kids from previous relationships and my last one was extremely abusive, both physically and mentally. My fear this time around was having to go through this pregnancy alone and of course that's what's about to happen. I'm sorry if this doesn't make a whole lot of sense. My mind is running a 1000 mph at the moment and my heart is completely broken. So much I have to figure out. If you've ever had to go through something like this, any advice is appreciated!