The day before your next period is the last day of your menstrual cycle. Thats when you stop counting. Thats how many days you had in your menstrual cycle that month. For instance, if you got your period on June 5 and your next period came on July 2, your cycle length was 27 days that month.
Is spotting considered last day of period?
Menstruation: Days 1 – 5 Day 1 of your cycle is the first day of your period, meaning the first day of full flow (spotting doesnt count).
How do you calculate your last period?
First day of last period Another way to do it is to subtract three months from the first day of your last period and add seven days. So if your last period started on April 11, youd count back three months to January 11 and then add seven days, which means your due date would be January 18.
What is my due date without knowing my last period?
What if I dont know the date of my last menstrual period?If you know you had your LMP during a particular week, your doctor can estimate your due date accordingly.If you have no idea when your last period was, your doctor may order an ultrasound to determine your due date.