late period but negative test

Hi everyone. So I've missed my period  Today would have been the last day of it. I've taken urine tests but they all have said I'm not pregnant. My husband and I were trying for a baby 3 weeks ago. So about 2 weeks before my period. This would be my second child. But these past 2 weeks, I feel nauseous, light cramps, I pee more, my pants don't fit right. All of these symptoms I've had with my last pregnancy. Should I wait a little longer to take another test? Has anyone else gone through this?