仲未有M到..

I have the same situation as yours but today I have ...
I had gone to the doctor to have 通經針& oral medicine but waited for 2 weeks till today.

I think the reason why my M did not come until today because I went to bed very late this 2 months & something made me very nervous (Nervous mood made hormones not balanced as the doctor said) until recently the problem was solved & my mood became relaxed few days ago, now I have M again.

So I think you don't need to test having BB or not, because if your mood becomes relaxed & get more rest for a week, if M still not come, then you must go to the doctor to check whether your body has some other problem as I wondered my body has any problem before today.

我覺得就算唔係有BB，冇黎M兩個月已經係一個問題，隱含住你身體的一些機能不正常，因此看醫生是需要的，不論是有還是沒有BB
其實冇BB都可以好耐唔黎M，我自己本身D M期一d都唔穩定，有時幾個月冇左，又一次過黎好多，有時仲黎幾日斷開再黎幾日。仲有d朋友試過壓力太大，成年冇M到。
所以冇M其實好多原因，有d可以比較minor，例如壓力大，作息不好，身體差左d；但都有可能係好大件事，如一些婦女病，當然懷孕也有可能
所以如果醫生話你冇BB，你都應該問佢你到底咩事未黎M。如果佢ge解答/方法令你有返M，咁就證明到你冇BB啦。醫生應該會比到最後個答案你架=)唔洗太擔心住