This is the 2156th most frequent Chinese word.
怀
"怀" (huái): to cherish, harbor, embrace, or hold in one's heart.
In this sentence, ‘怀’ is used in ‘怀孕,’ which refers to the state of pregnancy.
她怀孕了几个月。
She has been pregnant for several months.
The term ‘心怀’ can be translated as ‘to harbor (a feeling or emotion) within one’s heart,’ showing the internalized emotion.
他心怀感恩地接受了帮助。
He accepted the help with a grateful heart.
Here, ‘怀’ is part of ‘怀念,’ which means to miss or yearn for something or someone.