Absolutely, many women have smooth pregnancies with zero symptoms. Just do your scheduled doctor visits and scans on time, and focus on your work and rest.
Oh god, you are so lucky! Here I am in my third trimester feeling like a heavy potato who can't even roll over, so enjoy the symptom-free phase while it lasts!
Yes, it happens, but having PCOS made me overthink everything when I had no symptoms. Just keep tracking your doctor appointments to be sure everything is going fine.
I felt the exact same worry because I had absolutely zero nausea or cravings early on. I felt so anxious until I saw the baby's heartbeat in the first scan, so please trust your body.