An abnormal Pap smear in pregnancy with or without human papilloma virus (HPV) warrants a colposcopy in the second trimester. Colposcopy uses a camera to look at your cervix. Unless I see findings that suggest cervical cancer, no biopsy is done. I just repeat the Pap at your postpartum delivery.
If you have had normal Pap smears in the past, it is unlikely that you have suddenly developed cancer. Cervical cancer usually takes ten years to develop, and you would pretty much have to miss most of your PAP tests during that time. Human papilloma virus if detected cannot hurt your baby at delivery.