TVUSG report says: "Bulky uterus with small subserous fibroids. Thickened endometrium. Small cysts in ovaries." Period late by 15days. Please advice?

Depends. I think the small subserous fibroids are a non-issue. More like an incidental finding. The rest (thickened endometrium, small cysts in ovaries, late period) can all be explained with something like polycystic ovarian syndrome (PCOS). If you are trying to conceive then you will likely need to see a physician for help with ovulation induction (using medications). Losing weight can also help.