can I be 3 months pregnant

Kethia

I've had three periods all of them have lasted only two days and it was only spotting I've got another one yesterday and it only lasted for one day was it heavy at all only have one pad and now I'm not even wearing a pad right now not understanding what's going on so I can pregnancy test and it said-1 and 4 more days to see what it says if it says negative again it negative again I don't know what I'm going to do what else can it be