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Now that follicle study will be done indicates the ultrasound
will find out the size of the dominant follicle. As soon as dominant follicle is 20mm or more there is good chance that hormones are normal and ovulation will take place.. As soon as ovulation takes place you can have sex to increase fertilization of that ovum by your husband's sperm. This ovulation can be soon on ultrasound. You can have sex for 2-3 days during that time. Ovulation usually occurs on 14th day prior to next menstrual cycle. GOOD LUCK !!!!