I'm in the same boat. I'm pregnant with twins, only 6months along, 2 months ago I found my bf using several different ways (txt, FB, dating websites & skype) to talk to different women, unsure as to how far these relationships went as he lied about everything until I had proof and then won't give me an explanation as to why, as deletes most things. We were still having sex EVERYDAY! At least once a day, I'm not exaggerating here, we were still going out and doing fun couple stuff, going to the zoo, ice skating and what not.
I cannot figure out why though, and he won't tell me, he just apologises and tells me it won't happen again. I'm reasonably attractive, have a healthy libido still and have actually lost weight (due to morning sickness), I've been eating healthy for our twins (boys) so have failed to put any actual weight back on. I'm a calm person by nature, though I can be brutely honest at times. I can not think of a time when I haven't tried to include him, all our Dr's appt's are around his work schedule so he can be there and though I get tired I attempt to keep our home tidy as I'm no longer able to work. He has seen me be so violenty ill that I've broken capillaries in my face (at which point he apologises for getting me pregnant), he has seen me pass out with low blood pressure, he has agreed that I'm not suited to pregnancy, we try to make the best of it. I try not to complain as I know he cannot fully appreciate what my body is going through, though sometimes I can't help it. I know not all men are jerks, but I am really starting to believe he is one of those males that would have found a "reason" sooner or later.
He says he wants to make it work, but I can't believe it won't happen again, nor is he actively trying to fix our relationship. He just acts like everything is normal and as it was before I caught him out. Though if I'm honest I was up front with him that I never wanted children and he wasn't planning on a family for another 5yrs, neither of us were happy to find I had fallen pregnant. When we talked about it though he said he wanted to be a family. If he didn't want this he should have said so, I wouldn't have been offended, I have given him many outs and he has never taken it.
I just want to know why...