I've always had irregular period, however last year was a consistent 35-38 day cycle. Hubby and I decided to TTC this past January and ever since then, AF has gone bananas. It comes every other month. On the months it doesn't come, there's some spotting and I'm always debating if I should be logging it as period or spotting? As this seems to skew the average cycle lengths. I'm using three different apps, and they all have different ovulation days. I've been monitoring CM...seems to fall somewhere in between all the apps...