Ovulation/Post ovulation

Megan

Me and my SO have started ttc this month and have been using preseed... I woke up yesterday morning w my boobs kinda sore when I walked (never has happened to me) I’ve always gotten sore boobs maybe 7-9 days before AF... anyone know why they could be sore? They are way more sore today than yesterday? My period isn’t due for another like 12 days or so