C845 Why is the difference so huge

"Has Meizhen been pregnant with my child before? Last time when I went to pick you up, she was actually just giving birth to a baby and was recuperating at your place, wasn't that so? " Lian Cheng asked seriously.

Gu Chuxue was dumbfounded by Lian Cheng's question. She didn't know how Lian Cheng knew.

Lian Cheng looked at Gu Chuxue and did not say anything. Actually