What Causes Pain In Lower Abdomen?

i m looking for answer regarding my lower RIGHT side abdomon last few days it s been hurting when i lay down and get up i feel slight pain then when i sneeze it worries me i m 55 year old female and my mother passed away at age 59 from liver cancer i know i should probably go see my doctor but at this point on a scale of 1 to 10 it s a 2. thank you