welcome to HealthcareMagic
The reason for increase in your weight could be hypothyroid so the first thing you should do is to take medicine to control hypothyroid.Once the level of TSH
stabilizes then you can do regular exercise & a proper diet(advised by a dietitian will be better) to reduce weight .As for conception you can try again & if the other reports are normal ;tubes are patent;and semen analysis
report is normal you will conceive.
All the best.