Milk for pregnant mummies

I'd say prenatal Multivitamins will be a better choice comparing to maternity formula milk. The fact is that usually obgyn prescribed preggers with Multivitamins, rarely maternity milk. If you compare the ingredients of both, they're much similar. I've tried several brands of Maternity formula milk such as Similac, Enfamama, etc, i personally dislike it. Most of them taste quite sweet with artificial flavours like vanilla, chocolate, strawberry. The tastes are somehow very odd to me, some are really sweet like Similac. I still prefer natural taste. I'd rather drink fresh milk for calcium intake.