For those who honour the Divine Feminine, Friday the 13th is a lucky day of blessings and celebration. Of course, every Friday honours the Goddess because "Freya's Day" is named for the Norse Great Goddess. But when a Friday also corresponds to the 13th day of the month, it is especially blessed. Thirteen is the sacred number of the Goddess because there are 13 moons or lunar months in a lunar year.
In early centuries, Friday the 13th was given an evil interpretation by the Christian church which was in the difficult process of christianizing Europe. If you can't suppress or eradicate something, demonize it. That was the Church's policy then and it continues today. Tried being a gay Catholic lately?
So enjoy Friday the 13th, everyone!