First time mom usually don't feel their baby's first kick until about 20 weeks, and yes you are extremely lucky not to experience nausea, vomiting, or headaches. Enjoy your pregnancy while it's like that cause Ii sure did when I was pregnant with my first child 7 years ago but now that I'm pregnant my second time I was experiencing everything and was not feeling well until 16 weeks. I'm now 18 weeks and feeling much better and I'm thankful for that.
Consider yourself lucky to be this far, people noticing and not have morning sickness LUCKY:)