Colposcopy

Have any of you mama's to be had a colposcopy done while you were pregnant? I'm assuming that if the doctor did not think it was safe they wouldn't have scheduled it. However, that does not curb my apprehension while thinking about it. I am scheduled on the 4th of April and am slightly scared because they take what feels like a hole punch to your cervix to take the biospies. I have had this procedure done in the past but not ever pregs. FTM someone help me out please!