So 3 days til AF still negative test.

Polly • Im 24years old. My husband is 27. TTC #1 married on 09/14/13. 11months of TTC.
So here's some things I've been going through. Cramps on my left side. Mood swings from h***. A lot of discharge but my boons don't hurt like they normally do they are tender to the touch but by now I would be really sore. So do you think that this could be pregnacy things or just AF. And should I wait 3 days to take a test?