1 Subtract eleven days from the total number of days to find the last fertile day in your cycle. 2  For example, if your longest cycle lasted 31 days, your last potentially fertile day in each cycle would be the 20th day in the cycle (31 - 11 = 20).
Why you shouldnât work up until your due date. I nearly gave birth to my son at work. Right there on the third floor of the sea foam-green AAA building on Van Ness Avenue, where I was working at the time. Luckily, my coworker Nino convinced me to go to the hospital when I told him that I was feeling crampy.
Most of these happen before your period is even due. If you wait until your period is due, the risk of miscarriage drops to 15-30%, depending on your age and other factors. So even if the test is positive just a week after conception, there's no guarantee you will still be pregnant by the time your period is due.