Pregnancy Calendar Due Date Conception. If you’ve been using an ovulation predictor kit or tracking your cycle using an app then you may. A cycle starts day 1 of your period and ends the day before your next period starts.

If you’ve been using an ovulation predictor kit or tracking your cycle using an app then you may. This conception calendar helps all pregnant women determine when they’ve conceived their baby or when are the best times to do so in the following 12 months.