HELP!?!

i had an ectopic pregnancy just over a month ago and i have kinda the same thing happening again but i started a new birth control also abt a month ago and had my first period off it. i had my period and then the day after i got off of it i started bleeding which was the same thing that happened last time. i have kinda dark blood a few blood clots. everyone is just telling me it’s from my birth control so i don’t know if i should be worried or if i’m just over thinking because i’m deathly afraid for it to happen again. any advice or help would be appreciated