Do longer cycles affect implantation bleeding?

Question

From what I have read online, implantation bleeding can occur anywhere from 6 - 12 days after ovulation. The typical woman has a 28-day cycle. My cycle has been consistently 31 days. This month, I ovulated on the 10th, had sex about 12 hours after ovulating (scheduling conflict). I was supposed to start my period today, but I only had a LITTLE blood, and it was bright pink (usually it's brownish the first day).

Now, I am wondering, is it possible that it's implantation bleeding? It's been longer than 12 days, but since my cycles are longer than "normal," is it possible?

I may get my period tomorrow, but answering this question will help me for next time.

By the way - I took a pregnancy test 3 days before my period was supposed to start - was negative, but I only had a 50/50 shot of having a positive result even if I am pregnant. I just haven't gone to the store yet, but I figure this is an interesting question, regardless of my situation (i.e. someone else may like to know).

Answer 1

Loger cycles affect your ovulation date. Implantation occurs 6-12 days after conception, which is not necessarily the same date as ovulation. In this case your ovulation date and the "conception" date would be the same so implantation must take place 6-12 days after that, no matter how long your cycle is