Congrats and good luck 8)
first off most schools do still alow you to attend them even though you are preg. Very few make you switch to somewhere else.
Have you seen any preg people in your school? If one is allowed then all are allowed.
Secondly you need to get to a doctor asap because their may be a problem such as tubel baby and some others and if a baby is tubel not only can the baby die but so can you. So it is best to make a apointment asap.
Thirdly you and your bf should sit down and tell your parents and explain everything to them such as you want to keep the baby and so on but in some cases if one of your parents is say strict and mean or something or not as understanding and the other is it is best to tell the other one and let them handle telling the not so understand and strict one.