I have no symptoms?!

Sarah
I'm 5 weeks 3 days according to the app, had positive tests and been to GP who said a positive home test and no period was all the confirmation she needs so she didn't perform any other tests. 
I really have no symptoms though. I am not tired at all, no sickness, my boobs are the same as they always are. I'm a bit worried nothing is developing. I would have thought as the days went by things would start to happen.
Does anyone else have this?