pregnancy associated with infectious hepatitis

例句：

1. 1. She is pregnant with twins.
   她怀了双胞胎。
2. 2. The pregnancy was complicated by morning sickness.
   怀孕过程中，她饱受晨吐之苦。
3. 3. Pregnancy can be a challenging time for women.
   对女性来说，怀孕可能是一个充满挑战的时期。