No. gastric band surgery is totally safe for women who were pregnant and women who are planning to get pregnant. Generally, it is advised that women do not get pregnant sooner than 18 months after weight loss surgery because it is the time of rapid weight loss, vitamin deficiency, raging hormones, and other important mental and physical changes for a woman. Once the weight is stabilized and the diet returns to normal, women can safely get pregnant. What is also worth mentioning, bariatric surgeries (including gastric band) increase fertility and make it easier for a woman to get pregnant both from the biological and social point of view.