when to test?!

Kimberly
So aunt flow was due yesterday and she still hasn't shown up. My period is irregular so it's hard to tell if I'm late or if my body is just acting up. I want to test SOOOOO bad but I'm too scared of either testing too soon and just being impatient and then I get AF tomorrow. How long should I wait to test? I was sick a few times this month but then again this time of year everyone is getting sick so I also don't know if I was throwing up from morning sickness or if I just had a bug. Advise please!!!!