You must be feeling terrified, not knowing who to turn to for help, scared of what your parents will say, trying to figure out how you could have a baby so young--a million things running through your mind. Maybe you think you don't have any choices. You do.
You don't need to have an abortion, there are other choices for you. Would you be willing to call a Crisis Pregnancy Hotline? They can help you with whatever you might need: 1-800-848-LOVE They can help with the pregnancy test, medical care, a safe place to stay if you need it, help telling your parents, baby clothes etc.
Also, your parents can't force you into doing what you don't want to do. You have rights.
Being that you are 13, your mom and dad love you very much and want you to be safe. Unless you feel like you might be harmed, talk to them...they would be heartbroken if they knew you were feeling so lonley, scared and confused and you didn't let them help.
*****Sending you super strong energy and courage to do the right thing**** You go girl!