I’m going on 4 days late now..

my period has never been late before. I have off and on cramps but no blood at all. I have reg pms symptoms right now but I don’t feel like my period is coming.

I took 2 first response tests last night before bed but they were negative..

my throat is constantly dry and my taste buds aren’t working and my nose is sensitive and runny.. what is going on with me??

Did I just test too early when should I test again? Could I still be pregnant?