9 weeks.. no sickness??

I felt a little nauseous up until 8 weeks, and I have felt completely normal since then. I had my first dr appointment right at 8 weeks and heard the heartbeat and everything was perfect according to the dr! I just can’t help but worry since that’s usually the main symptom during the first trimester. I forget I’m pregnant sometimes because I feel so normal! Is this happening to anyone else? Maybe I just got lucky this pregnancy