Ohh yes! had weirdest periods in the world since op, I have implant in my arm which should stop my periods and it worked fine up until loosing the weight and now they are all over the place! from been a week apart to two months apart:cry:
They should settle down once your weight has started to slow down, but and its a big but you should always get spotting checked out by your doctor just to make sure its nothing else, more than likely it is down to the weight loss but always be on the safe side!