Low blood sugar... Does anyone know if it can harm the baby?

Laurie
This is our first baby. I had a low blood sugar of 47 tonight when I came home from work. My husband and I know that I can handle it (I have been lower before and still coherent) but we are not sure how the baby will handle it or if it can harm the baby. 
Has anyone else experienced a low blood sugar like this and if so, what did your doctor say? Can/does it harm the baby?
Thanks in advance for the feedback. 

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