4 week symptoms

I am 4 weeks pregnant following <a href="https://glowing.com/glow-fertility-program">IUI</a>. 
I haven't had any symptoms, but my levels were 500+ at my last HCG blood test. 
The only "symptom" is I have some mild "aches" in my lower sides,very mild. I would
Almost say it's more like a feeling of "stretching". No cramping or bleeding, is this normal or something to be concerned about?
Also should I have more symptoms by now!? 😳😔