Hi I'm Due On Aug 20th My Doctor Prescribed Me

Hi I'm due on Aug 20th my doctor prescribed me valacyclovir 123 pill she said take the pill every 24hr & the pill still not working ..she Gave me all type of pill but the symptoms still there! I don't know if she know what she doing or not! I'm getting worried I'm due any day now , I don't want to have a C section. You think I can take the pill 2 times a day instead of one?