i was feeling really moody so went to see gp and a blood test has shown i have an over active thyroid, ive been put on a beta blocker to slow pulse down and another drug to slow down production of thyroxine. we were trying for a baby but gp says i cant get pregnant now im on this medication,i totally forgot to ask how long i will need to take this medication,but all i know is she has made appointment to see a consultant, has anyone out there had a baby and had this too.