Negative pregnancy test

Ta

So it’s about 4 days until my next period and I took a pregnancy test at night and holding my pee for 30 minutes. It came back negative. I have a few symptoms of pregnancy like my boobs hurt really bad and my nipples are extremely sensitive and I have had mild cramps for little over a week now. I feel off and have had a weird headache I can’t really explain. Have any of you gone through the same thing and have been pregnant?!