I had unprotected sex on the 17th of April, my highest ovulation day, I had unprotected sex again a week later, and spotted some, I then had what was supposed to be my period on May 1st, it was late and only one day......Since then, I've been experiencing, headaches, very heavy sore breast, frequent and long urination, dizziness,nausea, tiredness, and cramps for at least a week, when should I take a pregnancy test