During pregnancy reflux is more common ..
Drink Freq sips of warm water
Have food at right time
Avoid spicy,juices,chocolates ,more cofe and tea
Donot sleep immediate after your dinner give a minimum gap of 2 hours before bed
Try to sleep on left lateral position if no issues from your gynaecologist
You can take syp.Gaviscon 10 ml thrice daily for 1 week and follow up
Warm water gargling thrice daily will help you to sooth your throat
Next Steps
If symptoms persists consult nearby ENT doctor with all precautions (wear mask,carry hand sanitizer and maintain distance )