Stepping Stones to Crystal Basics has an amazing article about Crystals for Fertility to Birth. Many of the crystals listed in this section are recommendations from the article. Be sure to check it out for more information.
Crystal Guidance crystal tip for Fertility.
Crystal Guidance crystal tip for Pregnancy.
Chrysocolla tumbled stone
Chytha (Serpentine with Jade) tumbled stone
Crystal Prescription Reference Cards for Healing Sets
Eudialyte mini heart
Moonstone tumbled stone
Shiva Lingham — multiple sizes available (Medium and XXL)