AF due 9th... Need advice!

So last month AF was a day or so late but I never tested and I found out while we were at a wedding reception that I was definitely not pregnant as AF arrived and I was devastated. I've been feeling "off" with sore breasts and tired which I never get with AF. I have a few events and travel coming up in the next few days and am nervous to test. Is it too soon? Really don't want to get caught off guard again :(