Hi and welcome to the GERD forum.
It is very possibly a GERD issue ...even if u did not have one B4 becoming pregnant....as it can be something u may only deal with while pregnant/
U may want to try eating more meals, but smaller meals over the course of the day...do not lay down for 3 to 4 hrs after u eat...avoid greasy, spicy, acidic foods as well as caffeine, carbonated bevs and alcohol...many of which we r told to avoid while pregnant ....
I use to carry saltines with me when I felt like this when I was pregnant.....
Congratulations and I pray the rest of ur pregnancy goes smoothly <3
My daughter ate Tums (calcium tablets) like candy all during her pregnancy to combat the burning of GERD or heartburn. Ask your doctor if it's okay for you.