The developer calls Saturday and Sunday a "bridge" between Ch2 and Ch3, but agree with you. I'd call it Ch2 continued. So, we essentially have two more updates (Sat & Sun) before we get to Ch3.After the completion of the CH2 (but now it turns out that the CH2 has not yet ended - weird), Mr. Plumer conducted a summary in the form of "questions and answers", one of the questions was: "when to expect the first sex scene in the game", to which the dev answered: "no earlier than the second update and no later than the seventh", that is somewhere between the third and sixth update but now if i understand right +2 updates to this amount.
Do I wish the story/action progressed faster, yes! That said, I am enjoying the build up and will continue to support this developer because I believe he has been more transparent than most. He has said from day 1 that this is a slow burn and has consistently tried to level set expectations of his patreons and those on this forum that bitch, moan and pay nothing.