Too early to take a Pregnancy Test??? Symptoms?

I've been kinda having the same problem. I've had some of my pms symptoms like turning into a big cry baby, headaches, cramps, and lower bach ache. But my period still isn't here either and it's exactly a month to the day since my last period. I took a pregnancy test yesterday, but it came back negative. I think I may have taken mine too early because we had unprotected sex June 4 and he didn't pull out. I'm hoping I'm just having a late period this month. Let me know how your situation turns out!