Relationship problems & pregnancy

So ladies I've been in a relationship for 8 1/2 years with my kids dad whom i have 3 amazing children with & would do anything for them but we've had problems from the very beginning with him not knowing what he wanted or whom but we continud to stay together even after it all but for a couple years now every argument ends up with DV & I leave the minute it happens but always find my self right back with him in a matter of time...

But lately these past couple of months I've been talking to a mutual friend of ours & one thing lead to another but we found ourselves spend time together as a couple I've enjoyed it not dealing with all the relationship problems but now ive found myself about 10 wks pregnant not knowing how or what to feel and think about it cause of my kids dad always throwing everything in my face....

Idk what to to it think ....but I know for sure im in the wrong for letting it happen