I think I've had a chemical last cycle. I had faint positive tests around when AF was due. 6 days later I started bleeding for a couple of days, spotting on the third day and then it stopped. According to three different apps based on logging the bleeding I've had my ovulation date would be around 14th November. However based on when original AF was due I would be due to ovulate around Friday. I've just done an OPK and it looks like this, so does that look more likely that I'm due to ovulate in the next few days as opposed to the end of next week? I'm confused as to whether my cycle starts from the first day of the bleed or the day that AF was due?