Need some reassurance. Waiting on call back

Larissa
I have already called the dr, and I'm waiting on a call back. I am a first time mom. My dr had me keep a schedule of movements for 2 weeks so I would learn his routine. I have started doing my kick counts since my last appointment, and he has been good being on the schedule. But yesterday he was off, and not getting his kicks. I called the after hours dr and she put me at ease and told me to keep track, and if there was a lot of concern to go in. I felt better, and went to bed after I timed how long to get 10. This morning has been off too. I called and I'm waiting on the dr to call back. I'm trying not to panic but I'm scared. Can anyone tell me this is normal? My sister in law said it happened a couple of times and it was no big deal, but wanted me to go on in. Sorry this is so long of a post.