For the May Day is the great day,
Sung along the old straight track.
And those who ancient lines did ley
Will heed this song that calls them back.
-- Ian Anderson

One could assume that handfasted or married couples had their own May Day celebrations after the fires and through the night at home as well.
The significance of this Pagan holiday is to welcome the coming summer and to remind the Earth that it is time to wake up and be fertile, to grow and to be productive. It is essentially, to ensure good fertility among crops and animals for this growing season.
What about the Crone?
What does she do with her withered, dry old womb? No babe will be at her sunken breast. No man's hand upon her wrinkled thigh. Are there other forms of fertility to be celebrated when the face is not so fair as to attract a man for a greenwood marriage and the bed at home has had only one pillow for several years now?

Perhaps the role of a Crone in the Beltain celebrations is more important than has been recognized in tradition. The Crone who embraces her rich experiences and chooses to share those with the fair young maidens can help them to become wise, fair, young maidens and to make good choices for their fertility of mind, body and soul.
So, this Beltain I will not lament my ugly face and aging body. I will celebrate the rites of Beltain in some way as a wise crone, rather than a wickedly bitter crone.
It is said that, to some, Beltain signifies the beginning of the fighting season as well as the time when legendary poet Taliesin is said to manifest. For some it is a time of sexual fertility, for others it heralds the ripening of a time for plunder, conquering and the spoils of war to the strongest of them. It can be a time for growing the food of stories yet to come.
The warrior, as a vigilant guard, was as necessary to guarantee a good harvest as the tillers of Earth and sewers of seeds. The wise woman who tends to the ills of the flock or herds and to the blights on the fields is also as needed to ensure a good harvest to all.

I guess what I'm saying is that, since I have been forced into Cronehood a bit early and it is no longer an option for me to make love, I'll make like a warrior and be a vigilant guard for the fertile fields and I'll make like a healer and tend to the fields and flocks, then I'll make like the poet and write about it for maidens to come.
Fertility means different things to different people. We all have a part to play and there are many alternatives.