(Closed) Need help calculating cycle length

posted 4 years ago in TTC
Post # 3
9145 posts
Buzzing Beekeeper
  • Wedding: November 2013 - St. Augustine Beach, FL

First day of period is the first day of each new cycle.  Since there are 30 days in April, given that you have an average cycle of 28 days, you should expect to start your period on May 23.  However, many women do not have 28 day cycles and until you track your cycles for 3+ months, you might be off by a few days or weeks.

When not on birth control I personally fluctuate between a 35 day cycle and a 40+ day cycle (this one has gone as long as 90+ days before!

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