If she gets her period on the 22nd of each month, her ovulation usually occurs between the 5th and 14th of the next month.

For women trying to get pregnant, it's important to know how to predict ovulation. While it's impossible to predict the exact date, you can know when she's ovulating by measuring her basal body temperature and observing symptoms.

Basal body temperature refers to the process by which a woman's body measures her body temperature when she wakes up in the morning. If her temperature suddenly rises on certain days during her cycle, it could mean she's about to ovulate. In addition, she may experience some fatigue and increased sexual desire, which are also symptoms of ovulation.

In addition to predicting ovulation, women need to take some steps during this period to increase their chances of getting pregnant. For example, she could have sex as often as possible, or try to have sex during ovulation. In addition, she can also take some measures in her daily life, such as diet, exercise and rest, to improve her hormone levels and physical condition.