Hey! I suffer with heartburn without being pregnant and was on omeprazole before i conceived, the heartburn has got so bad during pregnancy that ive tried everything, currently i carry the double action tablets with me but find they are a bit crap tbh, they have changed my tablets to esomeprazole which is stronger but am still slurping gaviscon from the bottle during the night. If its bad continuous heartburn it might be worth contacting ur gp and asking for omeprazole, it poses no harm to the baby and 1 tablet a day should knock it completely on the head if ur a normal being with no heartburn problems already like me haha. Good luck xxx