Jan 19, - Can you get pregnant if you have unprotected sex on the first day of your period?? Yes, especially if she has a menstrual cycle that is only about 20 days long. Sperm can live in a woman's reproductive tract for about six days. Feb 9, - Fans of 50 Shades of Grey will remember the much talked-about tampon scene—and while that particular romp won't be playing out on the big.