Is it normal for the menstrual period to get delayed after losing virginity?

No: Losing your virginity should not alter the length of your period unless you miss it all together due to pregnancy.

A/W Dr. Munshower.: Unless you are pregnant - loss of virginity should not delay period. Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems (i.e. Pcos).