So I normally have a 27-29 day cycle with af normally going on for a dreadful 7 days. I am 22 and have a 4 1/2 year old daughter. I haven't taken a hpt since the day af arrived but she was only here for 4 days and very light which is uncommon because I'm a heavy flow person, since af ended I have taken opks several times daily for a week and a half but I haven't ovulated yet? I know people are going to say take a test but I never thought I'd be wondering if that could have been implantation bleeding? ?