How to go to the hospital to monitor ovulation

Patient's question:

Patient gender: Female
Patient age: 30
How to monitor ovulation at the hospital

Doctor's answer:

Here is the English translation of the provided content, with line breaks preserved as instructed and all Chinese text translated into English:
1. Cervical Mucus Method: In the gynecology department of a hospital, this method involves examining cervical mucus to determine if a woman is in her ovulation period.
2. Basal Body Temperature Method: Measure your temperature every morning after waking up. Generally, your temperature is lower in the first half of the day and drops further during ovulation, then gradually rises afterward.
3. Cycle Length Calculation Method: Many women do not know exactly when their ovulation period occurs. Using the formula below, after some testing over time, it is easy to calculate.
- First day of ovulation period: Cycle length (in days) minus 18 days
- Last day of ovulation period: Cycle length (in days) minus 11 days