Hello, and I hope I can help you today. if you are having unprotected intercourse without using any form of contraception, you are risk for pregnancy. However, pregnancy symptoms can vary widely between women, and symptoms of bloating, cramps, breast tenderness, abdominal pain, mood changes, and irregular bleeding can be caused by hormonal irregularities as well as pregnancy. The most common sign of pregnancy however, is a late or missed menstrual period. So, if you period is late, I recommend that you purchase and perform a urine pregnancy test with your first morning urine according to the package directions. This will confirm whether or not you are pregnant. If your HCG level is not high enough to cause he test to be positive, you are not pregnant, yet. If you are not pregnant, you should consult with your endocrinologist regarding optimizing your thyroid hormone levels, as well as regarding weight loss. Pregnancy can be very risky if you are morbidly obese, and any improvements you can do with your health before getting pregnant will be healthier for you and your baby. I hope I was able to adequately answer your question today and that my advice was helpful. Best wishes, Dr. Brown