In a comfortable position, insert your finger into your vagina and move it in a circular motion to feel around the walls, which will feel spongy.  Continue to do this, moving your finger up your vaginal canal, until you feel something that feels a bit like a nose, or a nose behind a thin layer of sponge - you found your cervix! The cervix is shaped like a very small donut (or very large cheerio), so as you feel it, you will also feel a dip in the center of it.  While you are there, bring your finger tip towards your belly button and you will also feel your pubic bone - this is what you tuck nixit behind when in use.  Bear in mind that your cervix will move throughout your cycle - it tends to be lower when you have your period, so don’t panic if you can’t find it.