5 Things you Might Not Know about Vaginas (VAGFACTS) 1. When aroused, the vagina can expand to around twice its normal size. It’s essentially saying, ‘Hello! I’m awake! Entertain me now’ 2. Your vagina will actually let you know when you're most fertile. The cervical mucus will become clear and stretchy during ovulation. Clever clogs. There are 8,000 nerve endings in the clitoris 3. It’s impossible to lose something in your vagina. The opening of the uterus is too small for anything to go through it, unless you’re giving birth, of course. So don’t stress about anything drifting into the rest of your body. It can’t. 4. There are 8,000 nerve endings in the clitoris, while the penis only has 4,000. Basically this means that the clitoris is a pleasure-driven SUPERHERO. 5. Vaginas are slightly acidic. Your vagina has a pH of about 4 —on par with a glass of wine or a tomato. Delicious. Have we piqued your interest? Book your ticket for The Vagina Monologues on 5th March here. 100% of the proceeds will go towards the Woman's Trust and V-day.