Generally there are many obese ladies with good fertility and their ability to have a good pregnancy as well. But the fat lady when complaining about the problem of delayed pregnancy is usually recommended to reduce weight because it is known to doctors that the balance of hormones body is affected by weight gain, including fertility hormones. Weight gain may coincide with PCO. In this case, weight gain is also an additional factor in making the pregnancy more difficult. It is also known that PCOS can affect the obese woman more, and some women show symptoms only after an increase the weight.