Follicles 17 x 12mm are not mature enough for chorionic stimulation to be recommended.
Chorionic gonadotropin can induce ovulation and can be used in women who are unable to ovulate normally, and intercourse 2 days after the chorionic gonadotropin injection may increase the chances of pregnancy. It is generally believed that follicles up to 18mm are dominant follicles, and it is at this time that chorionic gonadotropin is administered that the follicles may mature and rupture, which promotes conception, and there is a possibility of pregnancy after intercourse.
The follicle is only 17×12mm not reach this standard, playing chorionic peptide does not have much significance, you can wait for the follicle to be a little bigger to play. In order to better determine the size of the follicle, you can use ultrasound to monitor the development of the follicle, so that you can timely and appropriate time to play chorionic villus. For more information, please consult your doctor.