I dont know what im going to do?????

Im 17 and im almost 18 weeks pregnant! I always couldnt wait to have a baby, but not at this age and now that im pregnant, i really dont want anything to do with it to be honest. I mean theres still a lot of things that i want to be able to do as i get older and having a baby is going to change everything! The babys daddy dont want anything to do with me or the baby so basically im by myself. So when i want to go out and have fun and do whatever, its not an option to leave the baby with its dad. I dont want to get an abortion because i dont believe in them and i would regret putting my child up for adoption. I just dont know what to do at this point..i mean im going to love my baby no matter what, but its just going to stink having to get me AND the baby ready everytime i go somewhere and feeding and changing the baby when im out..i go a lot of places and its just a lot to lug a carseat and diaper bag around everywhere i go! I sound selfish i know! what could help me get through this??