Helloo Doctor, my wife is pragnant by 13 months. Doctor has been precribed Tab corcium(organic calcium), Tab Anofer and Capsule Thrive G ( DHA ,EHA, selenium and wheat germ oil). Doctor i have two queries. Fisrt about calcium, is that we can use elemental calcium carbonate D3 tablet inplace of Natural organic Calcium (Corcium). Second is Capsule Thrive G (Elder pharma), this capsule is not available in my city area so plz recommend me another product as subsitute of Thrive G. Please if possible send me answer also on my email: YYYY@YYYY . Thanks