I just thought I should update, because I am feeling much better now. I got my first blood test back. Yep. I'm definitely pregnant, and my hormone levels are well within range for 6 weeks. The doctor seems confident everything is fine esp. as my spotting seems to have subsided the past day. I had bad cramps this morning, but as soon as I thought of something else, the cramps went away. She told me I can cancel the third blood test, but that I still needed the others just in case. She said some of the same things you folks have been saying. There are no guarantees in life, but I really have to relax, and i know that's important for the baby, too. It's really strange, because I don't feel like I'm pregnant. I feel like my regular self.
Thanks a lot for your responses. They actually matched everything the doctor was saying.