Anyone else have unsure feelings about getting an abortion?

First and foremost, im getting an abortion. It’s the right thing for me in all aspects. I ultimately want an abortion over having a child. HOWEVER, I’m having some feelings of drawback. I’m nervous about the surgery (I’m 10 week along), and I’m worried I’ll regret it a little bit afterwards. I’m so nervous. I feel like even tho i haven’t had the abortion yet, im stuck in the- “what if” mind set. Anyone else have had this experience? Any advise?