Please just help

Marie • College student
I just came from the doctors office and I'm pregnant!! I don't even know what to think, my boyfriend wants me to keep it but I'm not ready to give up my life for someone else. 
I can't even remember the last time I had a regular period. I've scheduled an ultrasound for next week but I want if I'm too late for the abortive pill. I just want time to figure this all out but time is the one thing I don't have. 
To be honest, im 21 years old and im scared. 
Please any advice will be greatly appreciated! 
Thank you.