Could I Be Pregnant?

I'm on Day 7 of missed period (I was supposed to have my period February 28th). I have had no spotting and no tender breasts. I have had really odd cramping near my ovaries (which when I usually have period cramping it's more towards the middle of my stomach) and have been so incredibly tired this last week. My husband doesn't want me to take a pregnancy test until Sunday so I don't get disappointed if it's too early to tell if I'm pregnant but could I still be pregnant? Should I take a pregnancy test anyway before Sunday to help me with my curiosity? I know, I'm a rebel 😈