Confused?

Okay, so I was wondering me and my fiancé had sex, about a week ago, and the past 2 days I been having hot flashes, and had really bad cotton mouth. Plus peeing a lot..... my period starts in about a week. Should I just wait to take a test?!! (No I’m not worried, me and my fiancé want kids, just wondering if I should take a test now or wait)