Not really sure how to start this off... I've been with my husband 3 years and we have been trying to get pregnant. Going on two years trying now and nothing. I've had a lot of people tell me its because I'm to "fat" I do weigh 200 pounds and I'm only 5 foot tall. 3 years ago I was 175. So has the weight gain put my body into "shock"? I have started to work out some.. trying to anyway, lol. Should losing weight give me a better chance of getting pregnant? Is there anything else I can do?

Being overweight CAN have an adverse affect on getting pregnant.

Since you have been trying for 2 years (and I'm assuming that you've been charting your ovulation for that time as well?), you should see your OB/GYN and see what she recommends.