i havent had my period in 2 months and i have had lower back pain, cramping, headaches, mood swings, having to urinate more often, i always need the taste of peanut butter in my mouth, the first month that i went to the doctors to get a urine test and blood test but it came out negative i dont know if it was too soon. and now for the month of march i still didnt get my period. my last menstrual period was on jan 22