hi all i am for23 yrs old i have a 2 year old son and have been trying for another baby for a while. my periods have always been regular i can calculate the day im to have my period and im always right. i am now 9 weeks late my last period was in september. around the time i was due i had 2 possative tests now all i get are negative tests 6 in fact. i have been to my gp and he doesnt seem to know what is going on with my body eather. please help me im at my witts end and dont know what to do next. can you lell me what could have happened