Hi I'm 14 and for some reason, my nipples have been quite sensitive and erect for the past 3 days. I tried searching about it but most people say it's due to pregnancy but I'm a virgin so yeah, not really helping. It's been quite tender and sore, and I just recently checked all my bras, and they appear to be all the right sizes. My period also ended last week so I have no clue what the cause may be. If anyone does know the reason why, please do reply. Thanks so much!