Hello and welcome to HCM
is not caused by infection most of the times.
There are other reasons for dry cough.
Hyperactivity of chest and abdominal muscles may not affect the unborn child.
However, the dry cough should be treated. You can take syrup honitus for the dry cough and saline gargles for symptomatic relief.
However, it would be preferable if you consult your doctor to rule out the throat infection
for which antibiotics safe during pregnancy
will be prescribed.
Thanks and take care
Dr Shailja P Wahal