ideas?

so heres my calender. i had unprotected sex on day 1 of my ovulation period. as of today i had been 6 days late on my period, but then i noticed i started bleeding. so i put a tampon in and to be frank, its been pretty light. ive been late on my period before (before i became sexually active) but when i would start - it’d be HEAVY, and it’s just not the same this time around. i can wait for tomorrow and see what happens, but im just anxious. as for any symptoms, all i have right now are really sore breasts