Hi ladies, I am in my first fertile window after a miscarriage at 5 weeks. I've always had very predictable cycles (ovulating on cd 12 or 13 like clockwork) but this one is weird. I'm on cd 15 and haven't ovulated yet. I've been doing opk strips and have gotten positives (or very near positives) in the morning and negatives in the afternoon for the past three days. I know I haven't ovulated yet because my temperature hasn't shifted Any thoughts about what might be going on?