Hi Zoya, Welcome to HealthcareMagic Forum.
You haven't mentioned what does your recent
TSH report suggest? The cause for your weight gain is your
Hypothyroidism problem and it is also known to cause
Infertility. But, don't worry, you will have to take the Hypothyroid medications as directed by your Doctor and get your TSH checked every 3 Months. This will reduce your weight and make your Periods regular which means you are ovulating, which will increase your chances of conception.
Have Unprotected sex every alternate day, between the 10th and 20th day of your cycle once your Periods are regular. eat healthy nutritious balanced diet which should include fresh fruits and green leafy vegetables. Avoid
stress and exercise and go for brisk walk for an hour daily. follow this routine daily. Stick to your treatment plan and go for regular follow up. Kindly have Patience.
Hope I have answered your Query, I will be available to answer your follow up Queries.
Wish you Good Health, Take Care.