Rojo, I'm sure the bleeding will stop either when you stop taking the suppositories or when your cervix "toughens up" a bit. But I feel pretty confident that the spotting is not a bad sign for you. If it was, I think things would have already gotten worse. It's crazy that you're 5 weeks tomorrow! It seems like you just got your positive yesterday, and that was at 9 dpo!
Haking, to answer your question, we're just going to have sex when we feel like it, and when #3 happens, it happens. However, I don't think it will be too soon, because it will probably take a few months for me to get my cycle back (unless I'm able to breastfeed this time for longer, which would be awesome!) and then, even when my cycle comes back, I don't think it will happen too quickly, since it took us 4 months to conceive both times, and that was with hardcore trying, like feet on the wall and everything.
As for feeling less movement, I had that at 23 weeks, and I started to worry a little, too, but he's up and moving around again. The funny thing is, I remember having a few "quieter" days with Alia, too, so I looked in my journal to see how far along I was when that happened with her, and sure enough, I was 23 weeks! So I guess that's just a week for catching up and resting for my babies.