Just two years ago, period has become irregular once in two months and then once in three mths and now stopped since Nov 08. Diagnosed with thyroid in Sept 06 and have been taking oroxine 50 mcg daily. Blood test for thyroid is now under control but seemed to have low hormonal level that has been linked to period stopping. I'm only 43 and mum had her menopause in her 50s. Ultrasound of uterus showed little follicles.
(Found out that my aunt (father's sister) had her menopause at about 44. Is there a co-relation?)
Will this lead to osteoporosis? Is there a way to get the period back at all with medication like Trisequens - is this safe?
Or should I just go on HRT? No family history of breast cancer.

Please advise and thank you very much.:)

osteoporosis is bone loss I guess it may be related to hormones.
Are you taking medication for any of this right now?
You could have a vitamin/mineral deficiency.
I know when I was in high school this girl only got her period when she ate enough iron.

You can try cooking in a cast iron skillet
do not use the microwave
and
Take vitamin D3
a vitamin B complex might be good too.

Are you saying you have hypo thryoroidism or that you no longer have it?