You're very lucky to have such a supportive husband, they really make all the difference don't they..?

That's right. Even call the Dr and ask them what it was - your well within your rights to ask/know.

Hon, don't apologise for being 'self centred', you're totally not. Just worried. It's perfectly normal. We all have these days, and being preggers you're well within your rights to be! (emotional) haha.