Count your blessings! Every pregnancy is different and not all are super symptoms :)
When pregnant with my first I honestly wouldn't have known I was pregnant besides the missed periods and growing belly/movements. I had no symptoms at all throughout my entire pregnancy and I found out just shy of 4 weeks pregnant.
With this one (6 weeks 1 day) the end of week 4 and start of week 5 I was so exhausted all the time and sooo hungry with a bit of nausea. Now i have nothing but a bit of reflux and sinus. But it's still early days :)
I had the same thing, symptoms started a week later, but have been pretty mild. I'm 6 weeks now.