If I had the choice, I would go for the baby. You can do both.

 First of all I think it depends on the person. If you set your mind to it you can do it. Does your school have summer break? If you can plan your pregnancy around a break that would help. Also, see if there are any other students ahead of you in school that have had babies. I have a six year old so I cannot speak to the "baby" part of your question but my son is really an inspiration to me. He encourages me, gives me hugs and kisses when I've had a rough day. He's very proud of his mommy the nursing student. I won't lie to you though, it can be tough to juggle all of the roles but IS POSSIBLE!! Good luck in school and with your decision 

You just need a strong support system like family and friends.  I didnt have a new baby during school but i had two teenage boys.  They are very active in sports and school event.  I missed alot of them due to studying and preparing for class.  My husband would go to everything and tell me the highlight.  It is not the same a being there but my children understood.  Now that school is over and i am an RN i have not missed anything.