When DD1 was 5 months old I decided to go back to school and complete my VCE the school I attended had day care facilities on the grounds. I was FF by that point so cant help with the BF around studying. I was at school 5 full days a week so only really got after schools and weekends with her whilst still juggling housework and homework. I do not at all regret doing it in fact it made me appreciate time with her more although i was missing out more than a SAHM, if you feel you are ready for this then I would do it but I would go the later option as then it gives you a few months full time with your baby and you can see if you think by then you would be able to juggle a baby and the extra work load of studying etc. Good luck with your decision