That will not be necessary. We now know the year you were born and the month. Someone make a note that next year we say Happy Birthday to her every day in April and we will know that we got it right. If she then says we didn't it is either May 1st or any possible day between January 1st and March 31st. Elementary, my dear Star Wars Girl. However, you did seem to give us a clue and imply that it is between now and the end of the month, but that is not a positive.
Who will volunteer for that mission? I'd do it myself, but I have an appointment that quarter.