7dpo with some cramping???

I am now 7dpo and have been experiencing some mild pain/cramping on the left side of my pelvic area! I don't want to test yet and get disappointed if it's a bfn as I was really disappointed last month when af was playing games and showed up late. The paim/cramping doesn't happen often but comes and goes. And some nausea but I am confident that is allergy/sinus related. Should I wait to test?! Help!