ok, so i've missed my period and took 2 pregnancy tests & they said negative. i have almost all the symptoms but all the tests say negative. but my privatal areas are hurting bad my stomach hurts and my back hurts.. i have had intercourse with the withdrawl (pull out)method but right now, i still haven't had a period (last one was february 3) and every test is negative..HELP ME PLEASE

Go to the doctor and request a blood test.

The pull out method is not a birth control method, it's just russian roulette. If you are not trying to get pregnant please use appropriate protection. I.E. condoms AND birth control pills/sponge/spermicide.