Can happen occasionally.
Welcome to HCM.
Non rupture of follicles can be due to two things: first, it can happen occasionaly for no reason & if its so, there should be no reason to worry. Second reason is mild adhesions around ovary either due to mild endometriosis
or infection. Both can be diagnosed through laparoscopy
As she had ovulation previously, to be on positive side, we can consider this as occasional happening & need not investigate in detail.
Regarding fate of unruptured follicles, they can either rupture spontaneously before next menses or can persist. If they persist till 3rd/4th day of menses & are seen on ultrasound
, she will need a course of contraceptive
pills (for around 20 days) to suppress them & you can try ovulation induction
again from next to next menses.
Please remember that one cycle of ovulation induction doesn't give 100% chance of pregnancy & please continue trying for pregnancy.
Hope this helps you.
Let me know if you have other concerns.