Could it still just be too early? I'm never late on my period, and now I'm 4 days late. Me and my Husband had sex this morning thinking that maybe it'd make my period come(usually it does) and still nothing.. I took a fee first response tests and they're all negative, and just took a clear blue digital one and it came back "not pregnant". I'm loosing hope..even tho I still don't have my period..