Pregnant or not?

I've been off the pill since January this year, my cycle became normal straight away and never had any delay with my periods or anything. I haven't been checking if I've been ovulating as I work away so haven't been seeing my husband, but have been tracking my periods with eve. We finally saw each other over Easter and technically I was ovulating that time (again I haven't been charting or taking any notice if I have been or not). We had unprotected sex. Now I'm 2 days late. I did a pregnancy test 6 days before my period was due, it was negative. I did another today which was also negative however I had drank a lot of fluids so my pee was clear like water.