Ovulation monitoring costs about $50 to $150 per visit, although the rates vary from region to region and from hospital to hospital. At present, the most accurate way to detect ovulation is to do vaginal ultrasound or vaginal color ultrasound, vaginal ultrasound is slightly cheaper, about 50 yuan a time. However, vaginal ultrasound can not see the blood flow signals, so the clinic will generally use vaginal ultrasound, vaginal ultrasound is more expensive, about 150 yuan a time, and in the whole ovulation period generally need to test 3-4 times, in order to see the whole follicle’s growth and development of the discharge process. If you want to monitor ovulation, you can do it under the guidance of a professional physician.