could i be pregnant?

So my last period ended March 1st and i have unprotected sex (he pulled out march 4th... <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> said my window started the 4th... and i've had a pee soo often the last few days and imve been nausuous... just wondering the odds on myself being pregnant? I'm going to wait to see if i'm late when i'm supposed to have my period to actually see... just wondering the odds now