For #1, #2, and #3, I suggest you head over to fatebegins's journal and take a look at her J2 master list, which you can find here (http://fatebegins.livejournal.com/57209.html). She writes mpreg!Jared and covers basically everything you're looking for. I'm sorry I don't have specific story recs, but every one of her stories is worth reading.