Playing devils advocate here - you didn't handle the Termination very well but you coped.
What if you don't handle pregnancy very well either?
What if you get Post-Natal depression? (Which can devastate women with no previous MH issues AND support AND stable finances/accommodation)
What if you don't handle motherhood very well?
How would you manage IF you end up in worst case scenario? (Out of uni, Single, Skint, Homeless)
Have you got back up plans?
FWIW I did it at 19, cocked up uni, ended up in a hostel for 18 months and was utterly miserable for the first 5 years, I hated my life, my homes, being lonely, skint but mostly I hated that motherhood didn't make me happy instead I felt like a shit mum and the depression never left me.
I got over it when school started and a routine 'clicked', I slowly got my shit together. But I wouldn't wish those years on anyone, my daughter was stuck with me through it, that was her childhood and that still hurts because she deserved so much more.
No one can decide this for you, I managed it but I was struggling for a long time. Could you cope?
Not wanting an abortion is very different to wanting motherhood.