In north Sámi areas, sources tell us that a pregnant woman had to offer a dog to make the birth easier.

If problems nevertheless occurred, the noaidi was called for. He found out what offering the dead, jámiÅ¡, or the gods required and performed the offering.  

When the child had been born and all had gone well, they had to offer a two year old reindeer buck, a doe or a good reindeer calf, or another cloven-hoofed animal if they had no reindeer. This animal was buried whole in the earth as an offering to jamiš.

Sources:
Isaac Olsen om ritualer ved fødsel