No period for past 2 years now... i am worried... :-(?!

hello,

I am 24yr old girl, single, virgin.

I had my regular periods till the age of 20 (of about 7 days each time) and then days started to decrease gradually over a period of time. It then became 5 days periods, then 4 days and then 3 days and lead to 1 day period blood. but now situation is that they have stopeed completely and i dont get the periods at all for almost 2 years.

I have also noticed that some white fluid comes from my vigina and when i consulted doctor then she said that i am having problem of lucoria.

I am visiting doctors (gyne) on regular basis but nothing is happening. Please advice what should be done. I am very tensed. will i be able to concieve in future?

Please advice, i have not shared this my family member too and they are keen to get me married but doctor says untill i dont get cured properly, dont get married. Please tell what will happen next?