Weight loss can be a periodic or lifelong struggle for many women. And it's certainly not easy to lose weight and keep it off. If you are thinking about conceiving, there is no better time than the present to initiate healthier lifestyle choices.
There is some evidence that an increasing BMI is associated with what we call subfertility, or a decrease in fertility without being infertile. Most commonly this subfertility is due to anovulation, or not producing an egg each month. Other theories suggest that an altered hormonal environment due to obesity can adversely affect the ovarian function, as well as the lining of the uterus where an embryo would need to implant. Even for women who ovulate regularly, obesity decreases the chance of conception. When obese women do conceive there is even a slight increase in the risk of miscarriage. Also, for obese women who conceive successfully, there are a variety of pregnancy complications that are even more common.
You hear it over and over again; diet and exercise, diet and exercise, diet and exercise. Caloric restriction is probably the most important part of weight loss if you are obese. Adding exercise to a diet is also very helpful and healthy. For women who are severely obese and who qualify for bariatric surgery, this too can be a good starting point to a healthier life -- possibly an even more fertile one. If you are planning bariatric surgery, it is strongly recommended that you wait 12 to 24 months after the surgery before conceiving. The reason is that there is a rapid weight loss in this time frame and it is better to not have the ongoing rapid weight loss while pregnant.
How have you worked toward maintaining a healthy -- or healthier -- weight? Have you found that changes in your weight seem to affect your experience in trying to conceive?