Cycle after D&c

Jen
My cycles are psychotic in the first place, my last one was Feb 1st-11th. We decided after I had a d&c on 17th we are going to ttc our 2nd and sadly last baby. My question is, all my calendars say I should have started my cycle on the 27th, I know the d&c can throw them off but has anyone been thru this?