i had a subchorionic hemorrhage, I bled very heavily and with very large fist sized clots for about 14 weeks - scared me to death everytime I passed one of those clots, but my daughter was born perfectly healthy, and I carried her to term
the morning after pill (which is very similar to the regular pill) does not have any effect on your baby, they know it has a small failure rate so it has to be safe, 1 woman out of every 100 or so it will fail, so they have to know it is safe for that small percentage of women, who will still have a baby in their womb after taking it.
My sister conceived her son while she was on the pill, he is now 19, 6 foot 4 and in university, very much a man!
also with my son I was taking a couple of really strong pills for various things hen i conceived him (by accident lol) and i was really concerned that it would harm him, but he is fine. apparently there are only a few drugs that will affect the baby.
I hope your baby will be ok - obviously you didnt want to be pregnant right know, but it looks like your baby wants to cling on.