Probably getting my hopes up as usual but what do you think.?

ok my last period was on march 27 im not due until the 21st of april me and my fiance have been ttc for almost 2 yrs my periods are irregular but earlier when i peed and wiped i had a spot i mean teeny tiny barely there but im always searching for things so i noticed it light pink spot but when i just went it was gone and i have a little bit or cramping nothing major. could it be implantation bleeding or just my screwy period?