To supply the developing fetus with the calcium required for teeth and bones, pregnant women should:

Continue to consume the calcium recommended for non-pregnant women because calcium absorption increases during pregnancy which will provide for the fetus. The good news is that most women do not experience bone problems during pregnancy and breastfeeding.  For the good health of both the mother and her baby she should take care of one’s bone health is especially need during pregnancy and breastfeeding, 

the answer is definitely 36.

hope this : )