Mission cadance

On yet another watch through. On 1x03 Emancipation. At the end when O'Neill mentions p3x-595 "remember when when you drank that stuff and you started to take off your....." How many missions do you think they've been on so far? Carter mentions in the pilot the system would pop out 1 to 2 addresses a month. The whole series plays out basically 10 years to 10 years with no extreme time jumps. Was mission number 2 just had luck and this was mission 3?