Which episode of Fan Debiao is positive?

All 25 episodes of Fan Debiao were positive. In episode 25 of Master Ma 2, Yu Fen is pregnant, and she shows Fan Debiao the test sheet. Fan Debiao repeated it three times, which was positive. Yu Fen could not explain clearly to Master Ma, so she had to leave quietly with grievances. After Yu Fen disappeared, Master Ma wanted to cry, but he was extremely depressed.