Ughh idk where to post this

Idk if i ovulated late ? But i had unprotected sex this cycle during ovulation im 2 days late today, the past two days ice had cramps, slight ones not severe like period ones , but today ive had spotting so i put a pad on in case blood came, hours has gone by and i just have a brown dot on my pad nothing big at all, is this my period ?? Or can i be pregnant maybe ? Please help