Thinking of baby#3....mixed emotions

So DH and I have always wanted 3 to 4 kids.... We have 2 kids that are 3.5 and 2yrs old.... So it's coming to that time that if we got prego my 2 youngest would be 3 yrs apart which is what we wanted.. I have soo many mixed emotions right now I want to get prego again bc I have major baby fever plus this is what we wanted however we just moved across the US and currently renting, I recently lost a bunch of weight that I have gained from the last 2 kids and I just started a new job.
My DH thinks we should try bc we aren't getting any younger and that's true I'm just scared to do it all over again. Also I've worked as an LD nurse for the last 2 yrs and I think about all the things that could go wrong and that kind of scares me.

Sorry for the long rant just venting I guess.