HI, Welcome to HCM
Firstly, Folic acid
are two different drugs doing different work on body.
IF you have hypothyroidism
then it will hamper your fertility
. SO you have to take thyroxine for neutralizing the hypothyroidism.
Now, Folic acid is required to maintain a high rate of cell division during pregnancy
, and it also prevent any abnormality occuring due low cell division rate.
So, you have to take folic acid to have a normal pregnancy.
These two drugs are not related with each other and they will be taken simultaneously to have a pregnancy.
Now, if you miss your period , then you have to do a pregnancy test.
So, take folic acid as prescribed and it will not hamper IVF procedure.