I am 7 weeks pregnant and just found out that my pap smear came back with abnormal cells. can i have a abortion before my biopsy or do i need to wait?

Wait: You need to wait until the results of the cervical biopsy results are completed and you will then know the extent of the problem. Often it is dysplasia(CIN) which is a "pre cancer" condition that can sometimes reverse itself without treatment in its earliest stages. Moreover, the abortion decision is premature if this is a desired pregnancy