Welcome to Healthcaremagic.
For best results and good prediction on fertility
weight reduction is a must.
I suggest you to have a diet plan
and reduce the weight and also go for a follicular scan.
A follicular scan shows step wise development of the follicles and release of the ovum which can ascertain you fertility and also give you an idea on the fertile period of your cycle when you can plan an intercourse to have good results.
Wish you the best.