No period, negative pregnancy tests

My husband and I recently began trying to get pregnant with what would be our first child. We were intimate several times while I was ovulating mid April. About a week and a half ago I started to notice some different symptoms like sore nipples, bloating, fatigue and some nausea. My period is now 6 days late and I still have these symptoms (my period is normally very regular). I have taken 2 pregnancy tests. One yesterday and one today but both are negative...

I’m going crazy here!

Any advice or insight? It’s my first time trying to get pregnant so this is all very new.

Thank you!!