Skipping your period will not cause you medical problems but you will need to consult your doctor if you have blood clots in your family history or you had them at all. Regarding the weight gain, actually the research shows that women on birth control pills lose weight, about 1 pound on average. Women NOT on the birth control pill bloat up and down. Those on the pill don’t bloat as much. Those skipping the sugar pills, bloat even less. Learn more about why you should skip your period in this video.
Lots of doctors have skipped the sugar pills for 10+ years with no problems at all. If you like bleeding each month, go ahead and take those sugar pills, but there is no need to bleed each month, periods optional!