Good morning madam Congratulations to you for being on the verge of motherhood Well about your problem it’s common to have acidity and back pain as the growing baby tends to increase these troubles What you can do is wear maternity support clothes and belts available to decrease loading on spine and take calcium rich diet and supplements As far as heart burns are concerned take antacids syrups as and when required A trick is keep the antacid liquid in a cool place like a fridge and take two spoons as and when required Avoid spicy and hot food Chocolate and coffee and tea and non vegetarian diet increase acidity try to avoid them If still problem persist visit a doctor near you for further evaluation