implantation bleeding ??? or period ?

Whitney
ok so according to GLOW my fertile window was march 2-8. I don't know what exact day I ovulated but I had intercouse on all my fertile days. My last cycle lasted 9 days Feb. 17-25. My next expected period begins March 22. But today I'm experiencing light pink/orange spotting. I'm 11days into next expected period. Could this be implantation bleeding or am I getting my cycle really early 😞 can anyone  help me figure this out !!