Irregular.period

Ali

I take blisovi birth control. For the past 2 months ive been getting my period when im supposed to but i also get a period when im ovulating so basically i get a period every 2 weeks. My periods are also longer. I told my gyno and he always tells its from the pill but i.feel like this isnt normal. What should i do? I feel like i should find a new gyno.