How is the menstrual cycle counted? Human Sexuality How is the menstrual cycle counted? A cycle is counted from the first day of one period to the first day of your next period Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.