cramping is very normal, uterus expanding etc I've had it both times. Since you have had spotting too its probably worth seeing the doc but I'm sure all is fine. (spotting is also very common)
Hello TBD...I'm really not an expert (as you know!) but I have heard that this can be quite normal. I would just ring the doc/clinic if you are really worried but I am sure this is pretty normal. Why not just give them a quick call to put your mind at rest and stop stressing - which is the worst thing you can do. Lots of luck with everything :)