Soo... What cycle day am I on?

This is my chart. I started my last period on the 23, and then I got a positive ovulation test and babydanced a bit, but then shortly after i was predicted to ovulate, i spotted/bled lightly for like, 5 days. So was that my period, or am i late, because I was predicted to start yesterday? Could i have concieved? I tested not too long ago (maybe 3 days? Have to check) and it was a bfn. I have been having slight bits of nausea and breast tenderness, and things smell really strong, as well as the desire to sleep a lot, but im trying not to get my hopes with by obsessing over symptoms because i could just be pmsing or be tired from staying up late to do homework... Ugh, what do you guys think? Should i test again?