Still waiting.... and wondering

Well my hCG levels were lower than they should be for being 7 weeks. Dr. Willis said that it isn't the number that matter it is if it goes up or not.. I am supposed to go back today at 4:30 for another blood draw to see if the number goes up. From everything I've read it says that it could take 2-3 days for your hCG levels to double.. and Dr. Willis said that in order to know that everything is probably okay the number would need to double from yesterday. So I'm stressed out, upset, and just a mess. I couldn't stop crying yesterday.. and this not knowing is killing me. The cramps have gotten a little worse, but still nothing severe. The spotting has not increased but is still there every couple of hours or so.. I'm just not even sure what to think or feel. This is the worst feeling and I wouldn't wish it upon anybody... I guess we'll see....