Post biopsy period?

I had my colposcopy appointment just over 2 weeks ago. The lady doing it said she couldn't treat the cells there and then and I would need to come back to do it under a general. She did take 5 punch biopsies at the time as one area was more abnormal than another. Cramping and bleeding for a few days as expected, though I was due my period yesterday as it hasn't arrived. I'm not usually late and I'm cramping again, is it normal for the biopsies to through the cycle out? Thank you! X