Brief Answer: Followup is needed Detailed Answer: Hi, Thanks for the query. In case of regular 28 to30 days menstrual cycles, usually ovulation will occur on around 14th to 16th day. By the time of ovulation, the endometrial thickness should be around 9 to 10mm and the size of ovarian follicle should be around 2 cms. In case of lengthier cycles, ovulation will get delayed. So, possibly you have to wait for few more days for ovulation to occur. And plan intercourse around the time of ovulation. If you do not succeed in this cycle, in the next cycle better to go for ovulation induction with hormonal support. Hope I have answered your query. I will be available to answer followup queries. If you are satisfied with the answer, please give your review at the end of the discussion. Take care.