How often you change your pantiliner depends on what you find most comfortable for you. Since a pantiliner is worn outside the body, there is no set time. You should change your pantiliner as needed to keep you feeling clean.

PUT TOILET PAPER OR SOMETHING DOWN THERE!!! IF THAT DOESN'T WORK ASK YOUR MAMA HOPEFULLY THIS IS A GIRL ASKING THIS QUESTION

No, you don't have to wear a pantiliner - pantiliners are designed for light menstrual flow, but some women will go without protection when flow is this light, use period underwear, sanitary pads, softcups, or menstrual cups.

i would say that you should go get a home pregnancy test and try that if you still ain't happy then try going to your doctor because th sounds of it you could be but try a hpt.

Vaginal Discharge (the white liquid in your underwear) does not necessarily mean you are close to your period. PMS (Pre-Menstrual Syndrome) is different for everyone; if your breasts are sore, it probably means you are retaining water. This can happen up to two weeks before your period. Just in case, I would carry some pads or wear a pantiliner.