AF due the 26-Symptoms? Too early to test?

AF is due the 26 and I'm feeling miserable! I've been so ridiculously tired. I'm about to fall asleep at my desk even after having 7.5 hours of sleep last night. Nipples are sensitive, but my boobs don't hurt (they didn't hurt until 7 weeks with my first pregnancy). I have creamy/watery white/clear discharge. My nose is super stuffy as of yesterday, which I'd have no reason for it to be. Very gassy, coming from both ends. And I'm over-emotional. I'm also really nauseas. I haven't tested yet, but is it too early to test? Had anyone else had many symptoms? I'd love your feedback!