Cramping at 5 weeks 2 days

Hi guys

This is my 1 st pregancy so i am not really sure if this is normal... i was due for AF on Aug 30 ... i got positive test on Aug 29 ...

Only symptom was tender breast but that has faded as welll... i am getting period like cramps on and off since my positive test .... its not extremely painful ... its mild ... is this normal? I have a doc apt for sept 16 but i want to make sure nothing serious?

-ps the test are 6 days apart ... u can see the line has gotten way darker...