It's a great idea to continue with your education both while you're pregnant and once you're a mum. There should be plenty of support out there to help you achieve what you want. You'll have help to pay for childcare while you're in class, too.
In law, if you're under 16 when you become a mum, you do have to continue with your education. You'll be allowed to take 18 weeks off from your schooling to have your baby.
Many young mums choose to go back sooner than this, though, even if they are breastfeeding. A lot will depend how term times and school holidays fit in with your baby's birth.
Being at school can be very hard when you're pregnant. You may need to miss classes because you're feeling sick, or very tired. Ask your friends and teachers to help you catch up on what you've missed.
http://www.babycentre.co.uk/x1043670/im-school-age-and-pregnant-can-i-keep-my-education-going#ixzz2knvg6UID