I'm stumped

Hi ladies, just looking for some advice. Been trying to conceive for a year now and the start date for my period was this past Sunday. I have had very minimal spotting with little to no cramps which is outside my norm. Im always super regular. I have not changed anything with my routine and stress is no more or less than normal. I tested this morning and it was negative. Could I actually be pregnant? I was thinking of waiting until Wednesday to take another test.