Planning pregnancy in nursing school?

Hi all! I'm halfway through an ADN program, graduate in Dec. Hubs and I have been considering a 2nd baby but we are older, I'll be 40 just before graduation. We decided previously we would revisit once done with school. I have been considering a lot of things, such as increasing risks for disorders, etc, lately here and wondering if it would be a terrible idea to start trying this spring, while still finishing school, not anticipate delivering until after graduation? From those who went through it, was 1 particular trimester absolutely horrible? My first pregnancy tri 1 was exhausting so I was thinking if I planned that for late summer and be trimester 1 and 2 into my final school semester maybe that wouldn't be so bad?

Thoughts, advise, considerations, all accepted! Thank you!