But it is very dangerous to have unprotected sex. You may have Sexually Transmitted Disease
or HEPATITIS B
/ C, etc. You should insist that your boyfriend uses a condom. You may keep a condom ready with you.
/ dangerous period is between 12th to 17th day from the first day of your menstural cycle, if your cycle is of 28-30 days. First day of the menstural cycle is the day on which menstruation
If your menstruation cycle was between 23rd to 27th March and your cycle is regular every 30 days, your fertility / dangerous period would be between 5th April to 10th April.