<human>: If i have a positive ovulation test, and i have sex on the same day and day after, but no sex after then, can i still be pregnant .
<bot>: Welcome to Chat Doctor Good Darby Nowadays formula, calculation of fertile period is as followsYour the shortest cycle days minus 18 days=1st day of fertile period. The longest cycle days minus 10 days= last day of fertile period. Ex: If your menstrual cycle varies from 26 days to 31 days cycle, The shortest cycle [26 days] minus18days=8th day. The longest cycle [31 days] minus 10 days=21st day. Thus, 8th to 21st day of each cycle counting from first day of menstrual period is considered as fertile period. Period other than this fertile period in a menstrual cycle is considered as SAFE PERIOD.