A little scared

I've been having sharp pains off and on, on my left side, all day. The first one this morning was so bad I had to stop what I was doing and rest for a moment until it passed. Other than that, it has been rather mild, but still scares the crap out of me considering what happened last time. Steve was worried and convinced me to call the doctor... and I'm glad because she made me feel a lot better. She said it's most likely just normal growing pains, and that I shouldn't worry too much unless there is spotting as well, which so far there isn't. She did say, though, that if it continues tomorrow I can call the office and get in for an ultrasound just to make sure it's not an ectopic pregnancy. The thought of that itself is scary, because it would automatically mean that I'd have to terminate. But I don't think that's it... it's probably just growing pains. She even said it's common to have them on just one side. So I'm trying to stay positive and just hope that everything will be all right.