Seeing all My Calendars in Microsoft Teams

I've noticed that Microsoft Teams only shows my main calendar, and nothing from ones I have made in Outlook under My Calendar; I have my main one and one I made with all the regular in class support I do so that I can keep my work a little more organised (the main one is for anything not related to classes).

Is there anyway to have Teams recognise the calendar I made as well as my main one which holds any Teams meetings etc?