It does not affect baby directly However if you have worms it will disturb your digestion and absorption of nutrients. Eventually as they multiply you will also have discomfort in the form.of abdominal pain. Please discuss de worming with your doctor asap.

Ajwan ka pani to grm hota h and she is pregnant to kya ye pi skti h

drink ajwain hot water

Please do consult your doctor at the earliest. In the mean time do not take stress.