Messed up cycle

I started my last period on the 26 of March and it lasted until the 15 of April. My husband and I BD several times. From the seventeenth until this past Sunday. I now have tender breasts and some nausea with slight cramping ( not at all what i feel when I am getting my period). I have no idea when my period is supposed to show up.  Could I be pregnant?  I would be so happy if I was