Feeling better, sort of

I'm feeling better, I guess. No more stomach problems, which is nice. But a dark cloud of worry has settled in over my head since I had that horrible cramping on Thursday night and I can't seem to shake it.
I'm OK during the day but at night I have these terrible dreams and I wake up certain that something horrible has happened in there. I am counting the days until the ultrasound on Friday. Sometimes, I wonder - would I feel this way if I had conceived naturally with no problems? I don't know. Maybe it's normal for every pregnant woman to worry. Maybe I worry more because I'm always waiting for someone to deliver bad news?
Speaking of bad news, my husband got some news yesterday that I am still trying to digest. At his annual dental checkup, the doctor noted that an old root canal probably needed to be checked. So, yesterday he went to meet with another dentist who does all the root canals at our base. Apparently, during the original root canal in 1994, the dentist noted that he lost the tip of a file during the procedure and couldn't find it. He assumed he irrigated the debris out during the procedure. Well, most likely, that tip has been lodged underneath my husband's tooth for nearly 15 years and on the newest films, the dentist can see two black spots that are either a) pockets of bacteria formed around this debris or 2)cancerous lesions. So, of course, we are pretty scared. Greg will go in at the end of July for the first of several procedures in which the dentist will try to determine what we're dealing with in there and how to best go about remedying the problem.
Just my husband's luck, he has never smoked or used smokeless tobacco and here he is faced with the scary prospect that he could have cancer growing in his jaw. Oh and let me say that this has been there all this time and Greg is required to have an annual dental check up and no one has ever noticed this problem until now. Makes me wonder about the dentists who have treated him in the past.