Question

which of the following conditions is normal during pregnancy?
oligomenorrhea
polymenorrhea
dysmenorrhea
amenorrhea

Explanation:

During pregnancy, the hormonal changes cause the menstrual cycle to stop. Amenorrhea refers to the absence of menstruation, which is normal during pregnancy. Oligomenorrhea is infrequent or light menstruation, polymenorrhea is frequent menstruation, and dysmenorrhea is painful menstruation, none of which are normal during pregnancy.

Answer:

amenorrhea