I am 2 days late yet I still get negative pregnancy tests. I am 16 days past ovulation, period was due 2 days ago on the 14th day past ovulation. Now, if your next period started on April 2, then your menstrual cycle length is the number of days from March 4 to April 1 (a day before your next period), which is 29 days. Let's say you bleed for five days, so, the duration of your menstrual period is five days for the month of March.
Every woman is different, but implantation cramping generally occurs between day 20 and 22 from the first day of your last period if you have a 28-day cycle, Ruiz says. If you’re wondering how soon you can feel implantation cramps after conception, we’re sorry to say there’s no definitive answer.