hmm..that's weird . I tested the endings for 4 different scenarios and got 'the corrupt 2' ending twice. I waited until day 29 before i sent the video. I saved the game the morning of day 29 before sending the video and tried those scenarios.Not true. I send the video and still got the pregnant ending.
1st scenario: reach day 31 without cumming inside and not sending the video - 'corrupt 1' ending.
2nd scenario: reach day 31 while you have cum inside and not send the video - 'pregnant' ending.
3rd scenario: reach day 31 without cumming inside and sent the video - 'corrupt 2' ending.
4th scenario: reach day 31 while you have cum inside and sent the video - 'corrupt 2' ending.
I admit i only tried those scenarios once. I might need to check again to see if there is any difference than what i got the first time.