As-salaamu 'alaikum Shaykh. How deep can one's finger or earbuds go into one's ear without entering the body cavity and breaking one's fast, and which finger is used to determine this? Jazaka Allahu khair

Salam. During the fiqg class, it was mentioned that it is Sunnah to continue not eating or drinking if a woman gets her period during fasting. I know this applies to the entire rest of the day, and is not wajib, but does this apply to the entire rest of the days she continues menstruation? (I.E: Her period lasts a week, she got them on Monday during fasting and followed the Sunnah to not eat or drink during the rest of the day. On Tuesday, Wednesday, etc, does this still apply as a Sunnah to restrain from eating and drinking though she cannot fast and has no intention of it?) JazaqAllah Khairun.

Dear Shaykh, What would be a precise and practical definition for "breaking your intention"? JazakAllahu Khayran