I miscarried / chemical preg a couple of weeks ago at only 4 weeks 5 days. HPT came up negative on first day of bleeding so was all over pretty quick. Bleeding was just a like a normal period with a few more clots but nothing major. I just did an OPK for interest's sake and I came up positive. If I count from first day of bleeding I'm only on CD12, would it be possible to be ovulating this early or are the cheap OPKs rubbish?! Really keen to get back on the horse, so to speak! Thanks.