could it be a rainbow?

Hello everyone I'm kinda new to this app but long  story short my husband and I lost a child in May and have been ttc ever since and haven't had any luck so far. My last menstrual was on 11/16/16 and I am due for af on 12/16/16  but for a couple of days now I have been randomly sick to my stomach with mild to light cramps and I'm experiencing some breast tenderness so with these symptoms I can't help but to be hopeful that this month we conceived but what I was wondering was if any of you ladies tested this early and ended up with a positive result ? And should I go ahead and take a text now or should wait ? Thank you ladies