Biopsy 20wks pregnant??

Gl
On the 30th I'm getting a biopsy done,due to an abnormal pap so i'll be 20w+5 i will like to know if any of you had one done? And how everything came out? Any bleeding, miscarried? Or any other consequences after the biopsy, i could do the monitoring part colposcopy but I'm not feeling riggt about having a biopsy been pregnant, would i be able to wait and do it after the baby is born??