She is pregnant.

Although Wen Xiangyang disliked Zhao Xi'er, she couldn't just sit by and watch as others fell. She came forward and helped Zhao Xi'er up. Just as she got her settled in the wheelchair, she noticed that Zhao Xi'er had started to cry, looking fragile and pitiful with her tear-stained face.

After Wen Xiangyang had helped her up and noticed her crying, she didn't ask any questions. She just passed her a wipe. She was uncertain as to what this woman was trying to do, so she decided to simply react accordingly.

Seeing Wen Xiangyang's nonchalant reaction and realizing that she wasn't following the script she had envisioned, Zhao Xi'er couldn't help but feel disheartened.