Folic acid immediately. I took Blackmore's and CalVit D3 supplement (Calcium+Vitamin D3) for my first trimester. For second trimester hospital gave me fish oil and Obimin multivitamins. I stopped Blackmore's after 1st trimester. But still continuing CalVit D3. Currently week 25. The reason I started Calcium early was because I don't drink milk. So I was worried about not getting enough Calcium
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