I am not queit sure about the issue that you asking.

But I know they dont take X-ray during pregnancy.

BUT they will do the blood test.

If you have not exposed to TB before there will be no issue on this for you. cos you will be medically pass.

Incase if u have the history of TB, the picture will be deferent.

Normally they take another X-Ray and PPD test.

BUT I AM NOT SURE ABOUT PREGNANT SITUATION.

HOP this might have helped atleast something for you.

I will check with someone here and let you knowlif I get any updates.

All the best.