NEXPLANON SPOTTING??? PERIOD???

Til

i’ve been on nexplanon 7-8 months. okay hey! so i spotted i guess? not sure but i thought i had started my period i bled through my underwear (it started while i was at dance) and my tights. when i got home i saw it, and put in a tampon. today i took the tampon out and no blood on the tampon. was this just spotting as my period? is it slowly going away? is this normal? or am i pregnant?

PLEASE HELP!!!