Something was bugging me about this, so I looked at just the deities in the published free basic rules. I honestly have no idea what people are looking for when they say that Hasbro shies away from fertility deities. I wonder if people are just keying off of the literal word 'fertility' here, because looking through just the forgotten realms gods published in the basic rules, we have the below which seem to indicate that Hasbro isn't avoiding the topic, they just don't use the word 'fertility'. There's a god who specifically includes birth, and another who includes beauty and passion in all of it's forms. Of course the game focuses on the adventuring related aspects of those, since that's what the game rules are about, but when there's a god of 'birth' and one of 'beauty and passion' in the free published rules I don't think you can say they're scared to include the topic.
Lathander was a Faerûnian greater god with a vast portfolio including birth, renewal, spring and youth, as well as athletics, self-perfection, vitality and creativity.
Sune was the greater goddess of beauty and passion in the Faerûnian pantheon. Lady Firehair, as her symbol depicted, was the goddess of beauty in all its forms; whether it be sights, sounds, smells, tastes, and feels, the experience of pleasure was the touch of Sune. The Lady of Love was the goddess of all love, including the more negative aspects like obsessions, murderous passions, and the tragedies that could be born from love, but also of deeper connections, of matches destined and forbidden, as well the transformation of ugliness into beauty.
They also include the Greek real world deities which include:
Aphrodite, goddess of love and beauty
Artemis, goddess of hunting and childbirth
Hestia, goddess of home and family
And the Egyptian, which have:
Hathor, goddess of love, music, and motherhood
Isis, goddess of fertility and magic
And the Norse, which have:
Frey, god of fertility and the sun
Freya, goddess of fertility and love
Frigga, goddess of birth and fertility