I am 16 just got pregnant by my boyfriend whos 20 and we've been togather for 2 years what should i do?

Does your boyfriend know that you are pregnant? If not then he should be told. If you are still living with your parents you should tell them too. Then you need to sit down and decide how you're going to deal with this and whether or not to have an abortion or to keep the baby once it's born or give it up for adoption. This is just my opinion, you must decide for yourself.