Could I be pregnant? missed period and overactive blatter and pooping...?

Okay, My last period was March 17th, So I am a month late. I took 2 pee tests and both where negative but I took them at night... I had cramps around the time I expected my period but I never started...My cycle is usually regular about 31-32 days I havent skipped or been off in over a year... I am not having any symptoms besides peeing alot and pooping alot, and I usually eat a ton of veggies but now all I want is fruit...lol Around the time my period should have come I was feeling sick when I went to bed.... Could I be pregnant? Should I test in the morning? Would that make that big of a difference? Could I be having a serious heath problem?