Let me just start by saying, I want to like myself.I want to like the person I'm becoming. I want to try but I just cant.
I got pregnant about a year ago by this guy that I didn't even like that much and he was the guy who I gave my virginity to. I didn't know what I was doing and my family issues were really getting to me and I just wanted to feel something besides pain. I wanted to experience something new. But I was just being stupid.
After I got pregnant. I got an abortion... I wanted to keep the baby but my family nor the guy would let me. And I regret it till this day... and the guy is a horrible person so he went and told all his buddys and now everyone I know thinks am a whore and some loser who got pregnant and killed her problems... they talk behind my back they call me names and they even put up a photoshoped picture of me on Facebook... its not like I'm perfect and its not like I was nice to everyone who ever spoke to me but I don't think I deserve it...
I'm just filled with so much shame and guilt and I don't know how to like myself anymore. I feel like my friends are amashed of being seen with me and I feel like my mothers ashamed to have given birth to me. How do I get over this? How do I forget all about it? I just want to leave it all behind but I'm reminded every single day... please help me.

There are so many issues to deal with in your post but the most serious I think is the aftermath of the abortion.

Have your parents taken you to see a councillor?

If not,this would be a good move to start building yourself esteem and confidence.

Its in the past,yes,that's true,but its not going away because it has not been dealt with,you need to talk about it.

It was a very difficult decision that was taken out of your hands,again this is huge and needs to be aired and talked about.

Have you spoken to your mother or another adult about how your feeling?

A teacher? An aunt? Grandmother?

Baby I experience the samething when I was fifhteen years old.I got pregnant by a guy I very much loved. When I got pregnant my parent s kept saying that they were going to get me an abortion, but it didn't happened cause me and the father of my child wanted our. I EXPERIENCED the SAME hurt and pain your feeling. It took years for me to get over that feeling and right now today I'm 20 years old, I have to beautiful boys with the same guy. I finished high, Im attending college and I'm a well known bad ***** in my hood... lol. So don't trip trust me everything will be fine, just KEEP YOUR HEAD UP! I f you fill the need to ask anything else ill be more then glad to answer ANY QUESTIONS.

I'm sorry you are going through this.
I think if you get some counseling it would help you quite a bit.

First, how old are you
Second, where do you live