craving milk?

So.. during my whole pregnancy I haven't been able to drink/look at milk because it would automatically make me nauseous, we haven't even kept it in the house this whole time. Last week I was having a very intense craving for a cold glass of milk but was very reluctant to try. I gave in an bought a half gallon last week. I managed to finish the half gallon this week and bought some more. It feels strange because I haven't thrown up or felt nauseous and crave more. Im very curious why this is happening. Did anyone else go thru a phase like this before birth?  #gotmilk? 🐮 🍼