During the ovulation period, the follicles grow into mature follicles, usually about 18-20mm in diameter, and the follicular fluid flows out and accumulates in the pelvic cavity after ovulation, which is not an abnormal sensation for most women, but some people with low pain threshold and sensitivity will have abdominal distension and pain, which is normal. The normal menstrual cycle includes follicular phase, luteal phase, and menstrual phase. If you have regular menstruation, you will usually have discharge about two weeks before each menstrual period, thinning, and a feeling of swelling in the belly, and some people will also have a small amount of vaginal bleeding, which are all symptoms of normal ovulation. If you want to prepare for pregnancy, you should increase the number of intercourse during this time, you can also buy ovulation test paper to monitor, two bars indicate that you are about to ovulate, hurry to arrange intercourse, the next day it is still recommended to test again to track whether you have ovulated, it is recommended to have intercourse again on the next day, generally sperm can exist for 72 hours, and eggs can survive for 24 hours, which can greatly increase the probability of conception. If you don’t want to get pregnant, you must avoid this time, otherwise an abortion after an unwanted pregnancy may lead to consequences such as infection and secondary infertility. In conclusion, lower abdominal cramps during ovulation are normal, but the symptoms usually last about two or three days, but anyone who has been there for more than a week should rule out pelvic inflammatory disease.