menstruation during/after AC/T???

Hi -   My story is a little bit confusing so bare with me.......My chemo regimen was a little different as I did not have Adriamycin, but.....I was 42 at diagnosis (almost 2 years ago).    Had one period after starting T/C and that was it!  Started Tamoxifen in March 2012 and haven't had one since.  I was told that my period might return, but it might not?  After 17 months without a period,  my MO checked my estradiol and FSH levels to see if I was postmenopausal and I am.  Long story short, I was switched to Arimidex for a few weeks and my period returned, so I went back on Tamoxifen.  From what I was told and have read, not having a period after a BC diagnosis is a good thing.   My MO also said that if my period did return, she would talk to me about starting Lupron or Zoladex injections, to keep my ovaries supressed, and obviously, that means no period.  As we all know, different MOs have different philosophies.  But, again, from what Ive read and researched, its NOT a bad thing if your period stays away after chemo, especially for those of us who are ER/PR positive.  One thing is for sure, I LOVE not having one anymore!! 

My story just adds to the confusion of chemo side effects. I found my lump at the end of my pregnancy and started getting things checked out a few months after I gave birth. I gave birth in May 2011 and was dx'd Oct. I hadn't got my periods back after my pregnancy yet and started AC x4 then on to Taxol x4. Still no periods. Then January of this year I got my period back and it came back pretty much normal just as it was before I got pregnant. 28 days, every month like clockwork, for 4 months. Then I stopped having them again and got my bloodwork done. It showed I was peri menopausal. My MO said I may still go back to normal or I may not. It's too soon to tell she says. I was triple negative BC so hormones weren't ever a concern for me, until now of course. The hot flashes, fatigue, insomnia, and depression SUCK!!!!! I found a natural remedy at my local health food store that my MO said was fine to take. I think it helps a little. I am getting ready to go back in for surgery this Friday so I know that is an added stress. I have to start the recon process all over. Not really a happy camper but it's how the cards are playing. My DMX was March 2012 with immediate TE placement. I ended up having to have radiation which fried my tissues so I had to remove the TE completely and let my body do some healing before starting over. This whole BC rollercoaster has been the pits, but I am here to raise my two adorable boys (3 1/2 and 2). It will not beat me, no matter what side effects may pop up from time to time. 

I keep telling myself "what doesn't kill you makes you stronger"

I am 32 years old had triple negative BC and ftoze eggs. During chemo my period stopped for 8 months. Got it back in August and been trying to get prego had a very lite period last month and now no period but prego test came back negative. Does this mean I may be going into menopause again?