Pregnant or side effects?am sexually active, and have nausea, dizziness, etc.on mononessa, faithful taker, every night at 10, never missed.2nd inactive pill

Maybe: You are pregnant until proven otherwise- get a serum pregnancy test- if negative, call your physician if these symptoms worsen or are unresolved. Remember, if you are sexually active at age 16, you are under the age of legal consent in many states. I would strongly recommend no sexual activity until you are married. To do otherwise only sets you up for a boat-load of trouble.