After the follicle shrinks, there is basically no ovulation. Under normal circumstances, the follicle will slowly start to grow after the end of menstruation, and the diameter of the follicle can reach 15-30 millimeters when it is close to the ovulation stage, and when these follicles become the dominant follicle, they will have a chance to discharge an egg. If the follicle shrinks, it means that the follicle has a quality problem and cannot grow into a dominant follicle on its own, and it is not able to discharge an egg. After the egg matures, it needs to work together with luteinizing hormone and follicle-producing hormone to be able to ovulate. If a woman has an endocrine disorder or follicle is relatively small, in the ovulation period, the same will not appear ovulation symptoms, you need to timely regulation to be able to treat, if you want to get pregnant, it is best to observe the ovulation situation, in the ovulation period of intercourse can improve the chances of conception.