I had my daughter back in january 08. I am currently nine months pregnant with a boy. A car seat i used with my daughtr only like three times is blue so i was thinking about reusing it. I tried selling it at a used children/baby store but they wouldnt take it because its date is 06. So i was wondering if it was safe to use it for my son? my friend just bought a car seat/ stroller combo but dont know if t will be here by the time hes born. (just ordered it today) just incase should my daughters car seat be safe for my son?