What do you do if like your girlfiend tells you that she cheated on you atlest 3 times and that she had sex with him behind your back but now she tells you that she loves you but that she might be pregnant because of her ex boyfriend and now she wants to have a closer relationship wit you what do you do?

I would tell her to find a new boyfriend. Why would you want to stay with someone who repeatedly cheated on you?

Get an education, learn how to communicate correctly and get a life.

Got to ask, how old are you?

From your grammar + spelling, you seem relatively young...

In either case, leave. You don't want to be with a cheater, and not only that, you don't want to be left holding the bag.

First, I would say to you that you should write in complete english and not use slang.

Secondly, If this person has had sex behind your back several times. Time to leave and stay away and make sure that you do not let this person back in your life or you could be setting yourself up for a life sentence. Emotionally, physically and with Aids/ Heptitis or other infections. Something to think about.

If there is no trust in a relationship then there is no relationship. I hate to tell you this, but if she has told you to your face that she has cheated on you and even "bragged" that she did so behind your back (or his back - kind of confusing), and to top it off maybe pregnant with someone else's kid? Get rid of her!! By the way, what soap opera is this from? If it isn't one, it sure sounds like it.

Honey, its time to let go.
Once is a mistake, twice is taking the piss so three times!! You can do a lot better sweetie because once you let them get away with it they know they can do it again and laugh because they know you'l take them back. That means they lose all respect for you and use you as a back up plan when there 'flings' kick them to the kurb.

I know its hard but I've been there. I was a living doormat for 7 years honey wakeup before you lose your own self respect.

That's a no brainer!

Wow... if she is cheating on you I would just break up with her because if she was cheating on you she would love you... not just say it. If she is pregnant then you need to break up and she needs to tell her ex that she is pregnant and he needs to be with her and the baby... not you. You are not the father and it is not your problem. As for she wants to get closer to you... I wouldn't buy it. Its time for you to move on.