It is probably the juxtaposition of ‘unlucky Friday’ and ‘unlucky 13’ that has made much of Western civilisation so nervous on that particular day.
Lucky one that you have got two birth dates to celebrate with your beloved ones. And it is even more good to see your love towards nature. You have an amazing story. Happy Birthday!!
Perhaps that stems from someone years ago taking a spray of May blossom into the house on Friday 13th and then a family member took ill and died.