It is normal for a 50-year-old woman to be sexually aroused, but whether she can get pregnant depends on whether she is still menstruating. It is possible to get pregnant if you have normal menstruation, but not if you are already menopausal. As women age, ovarian function declines until menopause occurs, after which no mature eggs are formed. Most women reach the age of 50 when menopause usually occurs naturally. Even if they are not menopausal at this time, due to the decline in ovarian function, the likelihood of ovulation is low, and the quality of the follicles is poorer, so the chances of conception will be greatly reduced, but there is still the possibility of natural pregnancy. Therefore, during sex, whether for contraception, or for disease prevention, it is best to wear a condom throughout the better.