Jena, I am very interested in your findings. I was diagnosed a week before turning 31, in November '99. I am finishing Tamoxifen next week (ok, maybe sooner, I have slacked off....) but I was strongly ER/PR+. All the docs I spoke to said that there is no reason I could not try to get PG if I wanted, that there was not enough research to support either way. However, it is possible that your fsh level were already high and may not be impacted by chemo?? My periods did not change one bit during chemo or Tamoxifen, if anything, I was more regular.
The Young Survival Coalition (youngsurvival.org) has info regarding this issue, but I am not sure if your situation may be more specific than what they address. Also, Johns Hopkins has an "ask the expert" site which is wonderful....they post the questions and answers on a message board and they may be able to provide you with some good info. Not sure of the site, but you could find it from their site.
When I did chemo, I asked about
fertility issues. My onc said that as long as I kept getting periods, my fertility would not be impacted. Hope that is the case for you!