Abortion scheduled, don’t know how to feel

I just scheduled an abortion on July 17th, I will be 11 weeks and 3 days. Is there anything I should be prepared for? Will I be asleep?

I have a 2.5 year old and I’m 18 years old, I can’t support another child at this point and I just broke up with the father last night because he want mentally and verbally abusive. And is there any way to cope?