9 weeks pregnant no symptoms!

I just turned 9 weeks yesterday and I thought I'd be overcome with nausea and all sorts of other typical symptoms that come along with pregnancy. My breast were beyond sore from weeks 4-6 then have started to feel almost back to normal but they are still larger then usual. My appetite has changed a bit I'm far less hungry and I'm picky about food. I did see a strong heart beat at 7 weeks 4 days but just wondering if I could have lost the baby since then I have had mild cramping but nothing bad. Anyone else have no symptoms and have had a healthy pregnancy?! Thanks in advance mamas