Vera Drake - after class discussion

I always thought that abortion is not a tragic choice if a mother does not want the baby. If the mother was not expected the baby and does not want him/her, it would be better not to make the baby born. Because both mother and baby's life would be ruined if the mother does not want him/her and he/she raises without mother's love. However, after the discussion in class, I was wondering what is right or wrong.  I was not sure if my thought was right; also, I was not sure if Vera Drake was doing right thing.