Did Something Horrible..

My fiance told me to not keep the baby.. I wanted it, but did not want to lose him. He brought home black cohosh and vitamin c for me to self-induce a miscarriage, I took both of them today and I feel absolutely horrible.. I am not bleeding at all. Someone please give me helpful advice. I'm so ashamed of myself for doing this. I don't want to anymore and he's expecting me to.. I know all of the replies will be to take my baby and leave him, but being with someone for years is hard to walk away. Is there any way to make us work? Anyone have a happy ending in this situation? I luckily haven't harmed my baby yet. He owns our home and car. I'm completely lost.