Well confused need answers please

Don’t know what’s going on. Originally I thought my period was late and then it started this morning all I had was very light pink and brown nothing red and heavy which I usually have doesn’t even fill a pad. I had changed my pad and now nothing on it wipe myself and tiny bit of pink! What the hell is going on had a couple of cramps but absolutely no red like normal. My pad is clean surly that can’t be a period hasn’t even been a whole day and nothing like I would normally get