Hi, welcome to HCM
Your USG pelvis report is normal. Normal follicle size around day 14 is 1 cm, and you have it.
If you have unprotected sexual intercourse since last 11 month then it is matter of worry. you have to tests like hysterosalphingraphy, semen analysis
for husband, thyroid
profile etc. Then only we can come to some conclusion. Consult your gynecologist for detailed evaluation. Tablets prescribed are for induction of ovulation and they are good continue with it.