I'm 15 years old and at the end of October this year 2009, I had an abortion.
This has been a very difficult experience for you and I am so sorry you are still struggling with it.
I think that there is often a lot of pressure when you are young to end the pregnancy and finish your education, but perhaps you did not get a chance to think fully about your decision and how you might feel afterwards.
I'm glad your Mum and boyfriend are there for you, but if you want to talk to someone different please ring the helpline on 0300 4000 999 ot look on the web site to see if there is a centre in your area. I think it may help you to get support from a trained advisor who understands the pictures in your head and all the feelings you are getting.