Im late but test was negative..

So today my period is exactly 8 days late from when it was supposed to start. I took a test Wednesday evening and one as soon as I got up Thursday and they both was negative.. my husband had told me iv been more moody iv been craving and eating way more then I ever do and something just feels different to me, idk maybe it's in my head maybe it's not what should I do? me and my husband have not been doing anything or on anything to prevent it since march 18 of this year. We want a baby so bad!