Confused help please

So my period is either one or two days early or on time never late I was due on the 8th of this month on the 7th I had what I thought was the start of my period a tiny bit of brownish blood on the tp but it was such a small amount like barely there so thinking my period was about to start I put on a pad the next day I woke up and there was nothing there my period is now 3 days late and I havnt had that brown spotting again but I feel like I'm getting my period the cramps are there and I just feel blah is there any reason for this? Could I be pregnant me and my bf use the pull out method.