Yes, time does fly!!!!!
Your Dr. will advise you on when to start solids. Cereal begins between 4-6 months, typically. You will do cereal for a while and then start on fruits and veggies. EVERY baby is different...one of my friends whose baby is 8 days older than my twins started cereal during month 3 due to the fact her baby was HUNGRY!!!! Mine are now 4 months and are not ready for cereal....you just have to check with your ped. at your next visit.
OMG She is so beautiful. And alert. I hope you are enjoying her.