My boyfriend and I are more than a year now, on the time when were just half a year together, I discovered that he got another girl's pregnant... but I love him so much that I continued what we had... until last week there is this girl (his ex-4 yrs. Ago) texted me and told me that they have a 4 yr. old child... I asked him about it and he told me it was true, I don't even know how to react about it... one thing for sure it hurts a lot.. until nw I haven't shed a tear for him, but every time I remember about his "past" and the other baby, ( who's now 3 months old) I don't know how to feel...
Do I really love him??
Perhaps I needed help for that...

Yes you love him as others love their partners and this goes on all over the world and will go on till the end of Earth's time. Often it is hard for a man or a woman to tell their partner of a past history involving children and we are under no obligation to reveal our private pasts unless our actions from the past could have a negative impact on our partner now or in the future and in your case it is the later. Your obligation now is to protect yourself from the reckless behavior of your male friend. To stay in this relationship would prove to be very sad for you. To leave this relationship would be painful for some time but you would feel much better in the future. Also he is not a man or boy who you can trust no mater what he might say to you or how often he begs for your forgiveness.

I think you should listen to statictable... the trust that bonds 2 people has now been removed from your relationship (at no fault of your own). This guy is obviously not who you thought he was. I'm afraid there is no easy option here. If you leave him the wounds will heal. Best of luck.