Don't have a good feeling

I really hate to be a downer but I had a meltdown today. I started spotting and having period-like cramps at work. When I finally got home, I broke down. My hubby did some quick googling for me and told me to relax - that from what he could see, lots of ladies have spotting and cramping when they are preggo - but I just don't know. This feels like the ugly witch is on her way even though I'm still on progesterone. I am not expecting much from my beta tomorrow morning if the witch stays away that long. Just trying to keep it in perspective - if it's negative, I'm not going to die or anything - we'll just re-group and try again.