Thanks everyone. So, I've had time to calm down and let things sink in. I hung out with BD for a bit yesterday, but neither of us brought up the name issue. I thought about my attachment to Jared Ewing and I realize it's sweet, but it's nothing my mom knows about or ever asked me to consider. And I can see how naming a child after an actual deceased relative can be more important than a hypothetical sibling. I'm thinking I'd be willing to counter with Alexander Jonathan (or John) Ewing or maybe even swapping out the Ewing for Christopher (BD's first middle name).
As for last name, BD is not a fan of hyphenated last names. I'm kinda whatever about them. I do know that when he was born (out of wedlock), he got his mom's last name. Then, when his parents got married a couple years later, they made his then last name a 2nd middle name and made his dad's name his actual last name. Like I said, it's a discussion to be had. At the moment, there's only 1 male (my nephew) with our last name. I know some people don't care, but I kind of do. My last name is pretty unique and his is decently common. Plus, he has 2 male cousins who could have sons and help the family name live on.
As for "baby rolls", I believe I'm been feeling those for a number of weeks. Last I heard, I have a right anterior placenta, but it doesn't seem like it's affected my ability to feel movements.