still my period not coming but i feel breast tenderness!

Hi,
Welcome to ehealthforum,
Few women can have period like bleeding at the expected period time during first few months of pregnancy (decidual bleeding). Wait and watch for your next periods. If you suspect to be pregnant, look out for development of any new symptoms. If you do not get your periods within 10 days of expected period dates, or if you get abnormal periods, or if you develop symptoms suggestive of pregnancy, you should consider visiting your gynecologist for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Take adequate rest. Drink plenty of water. Maintain healthy diet.
Take care.

in august me n my bf had sex...after a week i got my period but till now i dint get my period and we dint even done anything yet...