Overly Anxious

I know I am being overly anxious. This is my first pregnancy and we went through IVF to get here, so I am just on high alert.

I am a nanny and picked up the two year old out of her crib, when I did so I felt a pain go through my lower right side. When I tried to move and adjust her, I felt it again. I know things are moving around and things will be different, am I being overly paranoid or could something be wrong?