Hi
I have been with my partner for 6 years in the 6 years its been good but more bad then good.
He lies about any and anything
Before we had our son I found out he was contacting his ex girlfriend even went to see her in my car his reasons were to find out why she had an abortion I was confused as I was having his baby he could have asked her this question before we met. I contacted her and she said they did meet up but didn't sleep together he did try and kiss her.
He had also joined websites he said his reasons were he just wanted to check it out he has joined more then 1.
He has added females on Facebook some as asked who are you as they don't know him others he said are female friends or ex girlfriend he known before but in some of the message it said you are still sexy we should go out for a drink etc. again he said he was just checking it out and the ones he does no it's nothing he was just checking up on how they were doing.

I think am dumb I think am a fool am having another baby I feel so dumb because we planned it but I feel as if I have been making a mistake.
I don't trust him at all

If you think he's cheating on you he is just tell him you don't want to be with him anymore just make sure ye takes care of the baby

If you don't trust him, leave him. He does not sound very trustworthy.