Birth control

So around this time last year I got my nexplonon token out. When I first got it token out my af were heavy maybe for about 6 months. After those 6 months my af started to become normal like before I got on birth control. Now this month I have completed 1 year without birth control and my af came normally (around usual time) but now i am worried because I have been on it for 2 weeks now and 3 days. My af usually lasts about 7 days. Has this happen to anyone else? Is this normal? or should I go see my doctor?