Late periods suck

Cortney

as of today I'm 17 days late for my period and no chance of being pregnant I have tested and it was a BFN and I'm cramping so badly that I can barely move and I'm nauseous from the pain and I have a bad headache and terrible mood swings like I've started which last I checked there isn't nothing down there so any tips to help me cope aside from this lol thanks in advance! !