Estimating ovulation is one of the important steps in pregnancy planning. Here are some ways to help estimate ovulation:

2. Measure basal body temperature: Women can record body temperature changes by measuring their body temperature when they wake up every morning. If a woman's body temperature suddenly rises during ovulation, she is most likely ovulating.

3. Use a pregnancy test stick: Women can use a pregnancy test stick to check whether they are pregnant. Pregnancy test sticks usually show two lines, one is the control line and the other is the test line. If the test line is darker than the control line, she is most likely ovulating.

4. Watch your sexual desire: A woman’s sexual desire may increase during ovulation. If a woman's sexual desire increases during ovulation, she is most likely ovulating.

5. Observe menstrual cycles: If a woman has regular menstrual cycles, she can observe her menstrual cycles to predict ovulation. Usually, ovulation occurs on the 14th day of a woman’s menstrual cycle.

The above methods are only some methods for estimating ovulation period. Women should choose the method that suits them according to their own situation. At the same time, if women are not sure whether they are ovulating, they should take a test in time.