A polyp is a protrusion of the lining of the Uterus
into the cavity of the Uterus. If this is in the lower uterine segment , it may block the passage of Sperms & prevent their fertilising your Ova , thus resulting in infertility
.If the Right Fallopian tube
is not visualised , it means it is probably blocked or you have one of many possible Congenital Uterine anomalies.Which would theoretically reduce your chance of Conception , by half. The Polyp can easily be treated by a simple D& C & Polypectomy/ Avulsion ( Removal of the Polyp).This would considerably improve your chances of Conception, provided all is well with your partner. If you still don't conceive in 6 months & are close to 30 years, you could consider Assisted Conception.