Go to summer school. It is not going to get any easier later, a baby at least sleeps every now and then but toddlers do not give you study time. You will be really sorry not to finish high school, not only now (embarrassment in front of your friends and probably sometimes having to lie) but later, it gets worse not better with time. As you see above, you will be doing it for your child as well as for you; if you can't do it for you, do it for the baby's sake. The prospects in our world for someone without a high-school diploma are really limited.
If i could do it, you can do it too. I got pregnant the end of my junior year an had my first daughter in my senior year. It was hard but when see that baby you will know you have to do it for your child. Good luck
You can do it mama,itll be hard but dont give up on yourself no matter how long it takes..you'll be very proud once you've finished