Congratulations. Dear Abby says the greatest gift you can give your children is an education for yourself and I agree. If you're in college, keep going and if you're not, consider taking classes after Baby is born.
I wish you all the best, mate! A person very very dear to me has just found out she is pregnant too, and her due date is not too far from yours. I hope you have a health and safe pregnancy. I understand how challenging it can be, but I have been told over and over from friends and family that it pays off in the end.
Good luck! I hope you keep us updated, if you aren't too tired in the upcoming months :)