Could I be pregnant?? Kindaaa scared

Can anyone help me try to figure this out? For a week or two ive been moody, emotional, having faint cramps and my period is about two weeks away, been getting headaches more then I usually do, I had spotting (which was pink then turned brown) which lasted about three to four days. took about 4 tests all negative but like I said this was about three weeks before im supposed to have my period so its probably gonna say that right?? Im soo nervous that I might be, hopefully its nothing serious. Please help haha P.S it got kinda painful to have sex, dont know if that has anything to do with it.