Period Irregular after Birth Control

I took birth control for a week and then stopped because of the side effects. My period came about 2 weeks later but it was lighter than usual and only lasted 4 or 5 days when it usually lasts 7. For the first two or three days it was enough to fill a pad and had clots but then it was very light. Is this normal after stopping birth control even though I only took it for a few days.