Every year, thousands of people are hospitalized because of the flu and pregnant women end up in the hospital much more often and can get a lot sicker. They may develop serious breathing complications, need to be intubated, and may even give birth very prematurely because of this infection. Therefore, the flu vaccine is recommended for all pregnant women. The inactivated shot is safe in pregnancy (not the weakened live nasal spray), and it even has the added benefit of getting some antibodies to your unborn baby.
Read more about week 10.