I don't know that i'm pregnant my tooth ache so i take antibiotics and mefinamic then i take pregnancy test and it's red and pink color it is positive?

Possible: Without certainty, but most of the home pregnancy test are pink for positive and blue for negative. If you are pregnant you should see your primary care physician for evaluation and definitive pregnancy test. Your dentist must know if you are pregnant. As a precautionary measure, dental treatments during the first trimester and second half of the third trimester should be avoided if possible.

Wrong treatment: Antibiotics and pain killers will not cure a toothache, only prevent problem from spreading. Before taking any medication while pregnant clear it with your obstetrician. As far as the toothache is concerned, root canal treatment or extraction, see your dentist for the best solution.

Get it treated: Many patients are treated endodonticly in 1and2 trimesters. The dentist will confer w your obgyn and non harmful meds will be given along with treatment.Only rarely is the procedure contraindicated!