Abnormal pap

I had my routine pain June. It came back abnormal but according to me PCP it was the most minor abnormal possible. I am currently 9 weeks pregnant and had a follow up pap at almost 7 weeks. I got a piece of mail from the pathologist that told me to call my provider to speak about my results as follow up may be needed. I'm nervous about two abnormals in a row and what could be the cause.