Those look like reasonable guesses, but three weeks is a bit young; I wouldn't put any money on #1, #2 or #5. I'd keep checking, those especially.
In some individuals, the organs may be developing still. I had a Best-of-Variety junior "doe" DQd, when it was a young intermediate (just over 6 mos of age), for being male. The judge at the other table DQd the buck - now entered in the correct class - for split penis. He explained that the male organ starts out more or less as a tube that is open all along one side (like a female), then seals up over time to become the familiar male tube. He said that although the buck had a "split penis" at the moment, to give him time and see if it corrected itself; some bucks take longer to finish. Con Man (which was what I named that doe-become-buck) ended up a Grand Champion with perfectly normal organs.
However... he did pass that developmental feature along to his sons. It made sexing juniors a headache. That was a particular bummer because I sell a lot of show and breeding stock, and I had several people with his offspring come back to me reporting the sex change fairy had visited one of their "does." So although they were beautiful, I no longer have any Con Man descendants in my barn.