Need help!

So AF was due on Sunday. April was the first month TTC so I was a little anxious. Sunday night I decided to test. It was clearly negative but I had just drank a bunch of stuff so idk if that could've effected it. Tuesday morning I had very light light spotting when I wiped but then nothing for the rest of the day and now today there's been nothing again. There have been months where I'm one or two days late but I've never been this late. Idk if my body is just playing tricks on me because I want this so bad or what. My husband says I should just wait another week and if it doesn't show up to test again. What do you guys think? Should I test again or wait?