Hi,no not really. I had once missed my cycle once for a whole 13months? who would of thought it.... I was so scared and thiught the same thing but no other women in my family on either side have any complicatons with TTC. For what ever reason this happened and then I got my cycles back and they were 35 day cycle lengths, then 32. They are now VERY regular and I have a cycle every 28-31 days. I have gotten pregnant 4 times but sadly ended in miscarriages. (due to short cervix) so dont count yourself out. Oh yeah Im 37 also didnt get preggo with baby#1 until I was 33. Hope I helped and all the best with your future endevors