Dear Jenny
I was like you but I think older at the time. I was on Arimidex (at age 46) and 2 months later, I got my period back - ughh! Later I found out that an alternative use for AIs is to actually assist younger women who have fertility issues if they are on the edge (google it and you will see that it can also help regulate the menstrual cycle) therefore it should only be used by women who were postmenopausal prior to bc. I actually think the Arimidex helped bring my period back because prior to treatment, I was still getting my period.
Since I was 46 and was going to be 47 in a few months, I opted to get my ovaries removed. Zoladex or Lupron put you in chemical menopause. But in any case, you will be in menopause just as I was by getting the ovaries removed. I too had to wait 3 weeks until all the hormones were out of my body and then I started back up on the Arimidex. Here is a link to one article I found. Femara and Arimidex work the same way.
When I got my period back, my gyne did an ultrasound and saw that one ovary had 2 follicles about to ovulate and the other had one follicle. I was sure glad my husband had had a vasectomy about 7 years prior - can you imagine!! Being 46 and just finishing treatment then wham
http://breast-cancer.emedtv.com/fema...fertility.html