Quick Question

Br
Ok, so me and my boyfriend have been TTC since October, I noticed during that time I wasn't tracking my ovulation. Now that I have we've had sex through all of the ovulation days. Now I have a week till my cycle & I'm experiencing werid sypmtoms ( Sore breast, nauseating, & vomiting) from what I read you can't experience it this soon . I wanted to know how SOON could you experience symptoms????