During the first trimester of pregnancy, it is crucial for women to ensure they are getting adequate nutrition and taking the right supplements to support their health and the development of their baby. One of the most important vitamins during this stage is folic acid, also known as vitamin BFolic acid plays a vital role in preventing neural tube defects in babies. It is recommended that pregnant women take 400-800 micrograms of folic acid daily during their first trimester. Additionally, iron is another essential nutrient during pregnancy as it helps in carrying oxygen to both the mother and baby's cells. Pregnant women may need more iron than usual due to an increase in blood volume. Calcium is also important for bone development in both the mother and baby. Vitamin D helps with calcium absorption, so it's beneficial to ensure adequate levels of both nutrients. However, it's always best to consult with a healthcare professional before starting any new supplements or making changes to your diet during pregnancy. They can provide personalized recommendations based on your individual needs and medical history.