W.H.
Hi! J.:
My son will be 13 months on Tues., 4/24, I am 6-1/2 months pregnant, and went through the same thing you are. I researched this online and spoke with my doctor. From what I have read, it is safe unless you have a history of miscarriages. My doctor told me that the milk will dry up on its own and he would wean himself. This is true, although I will still nurse him if he wakes up in the middle of the night. So far, so good.
Good luck to you!