What Causes Two Period A Week Apart With Frequent Urination And Dizziness?

Hi! I don't know exactly what is going on anymore. My Husband and I do engage in sexual activity but since our honey moon, I started my menstral cycle; had it for a week. Then a week later i had another for three days?? every since then I have began urinating more often and feeling very dizzy, sick, and drained. What could this be? Am I pregnant?