That's a pretty full plate you got there. I had an unplanned pregnancy, after I got over the initial shock and panic. I realized I wanted my baby more than anything, regardless. If not wanting children isn't changing, I suggest you start looking at agencies/organisations, about adoption. I can't imagine many worse things than growing up unwanted. Even if you never verbalise it, your child will eventually know...
Can you see a pdoc about pregnancy - safe meds? I hope the tide changes soon