Help 😣😣

Maria
So I was having sex and I started bleeding , I'm not a virgin, but I was bleeding as though something was hurt , I'm supposed to be getting my period in 2 days although I got nexplanon inserted 6 days ago so i don't know if it will become irregular. My question is , could this be my period of and if not what can it be and should I be worried? Also it hurts to pee...