You were in your heat season. You were a doe, so you were bound to have your heat season eventually. It didn't help that Alastor who was also a deer but a buck. That didn't help at all. You were in your room most of the time and Charlie would bring you food, but one day Akastor came to check on you, due to Charlie nagging him to do so forgetting that you were in your heat season.

As Alastor teleported into your room, while you were sitting on your bed struggling to get comfortable, but it didn't help that you were restless. Alastor paused for a moment realizing it was your heat season.

"Ah, its that season, my dear?"