Your in second trimester,so treatment is safe for this trimester.when pain is not relieved even after you take medication ,it is a irreversible condition.only treatment for this tooth is root canal treatment.for safety concern,you should consult with physician and bring concern form and visit to dental clinic then do root canal treatment,otherwise pain is not relieved.
Next Steps
Visit physician and get concern for treatment
Health Tips
Don't take medication by own,you should visit physician and dentist talk about condition and get treatment