confused

Today is 14 dpo, I've just been to the toilet and wiped and there was a blood tinge on the paper, I'm not cramping or anything but I've never had this before ever. It was like a dirty red colour... I have a 38 day cycle usually and shouldn't expect period until 4th April, but glow says my period should be tomorrow cuz I ovulated round the 11/12th march... what do u think??!