Working/Going to school and pregnant?

Alright, I'm trying to convince my hubby to have another baby, and NOT right now. but soon. so i was just thinking. I want one as soon as possible but i am in school and working right now. I get out of school in november and have an internship until the end of May 2010. I was just thinking if it would be better to get pregnant at the end of the year, so when im done with my internship the baby will be here next summer and i dont have to take time off of work, or if i should get into a good job and then have a baby so that i have a decent job to go back to? Now im not worried about insurance or money were fine with that and were fine with just the hubby working so dont say i need to worry about that stuff. i just wasnt sure which would be better. We have a 3 year old and i dont wnat the babies to be like 10 years apart. thanks:)