Please please help me!

Okay so my period is now two weeks late. I have completely missed my period this month. I have never done that before in my life. I kept getting frustrated thinking this wasn't going to happen for me and my husband so I let this month go. And I said okay whatever happens happens this month I'm tired of disappointment. But NOW my period is skipped. I've taken 4 home pregnancy tests and all negative. I have most of the symptoms. But I keep getting a negative test. I'm just concerned if something is wrong. Anyone else go through this?