Catherine, the problem is that ovaries created by the method you suggest could result in a baby with YY chromosomes, which would likely be fatal, since the Y chromosome actually has so many fewer genes than the X.
I know a little bit about this sort of thing and what you want to accomplish is just beyond the realm of the possible but not too far. Here is what would have to be done, knowing what we know today.
1. Acquire stem cells from the patient.
2. Modify these stem cells by removing the Y chromosome and inserting a second X. Options for the second X include using your own a second time, or getting the other X from your mother or any sister or brother.
3. Once the XX stem cells are proven stable, begin to grow them as the appropriate organ structures (in this case, ovaries, fallopian tubes, uterus, cervix, etc.
4. Once the organ structure is complete, transplant it.
Now, even having done all this, which will allow a MtF to become pregnant, an MtF cannot give natural birth. There are two reasons for this, the first being the lack of flexibility in the neo-vagina, and the second, more difficult is the fused bones in the male hips which do not allow the birth passage to expand properly. I am aware of no way to reverse the bone fusion at this time which means that MtFs that become pregnant would have to give birth via C-section.
This may all sound like science fiction, but altering the contents of stem cells is already done and growing some body parts is already done. Mothers have donated ovaries to daughters via transplant. So the rest is just engineering and refinement of techniques already in existence.
