Pregnant ready to medically abort. PLEASE help me

It finally happened my dumbass got pregnant from hooking up with my ex. Thank God I caught it early, tomorrow is my consultation for medication abortion (my stare requires consultation before getting one) I’m scared.. I feel so guilty. But I’m 20 & barely have my life together. I’m 20 and still feel like a kid. I can’t bring another life into this world. I know this happens to a lot of women I just can’t believe I let it. I wasn’t on birth Control, I was celibate for a while.

Please share your experiences with me about the pill & please comfort me I’m so scared. I feel like I’m the only person in the world going through this. The only person who knows is my best friend. I can’t sleep or eat I’m so ashamed this was never supposed to be my life. Please help