My parents gave me an ultimatum about getting married

I(16F) am currently 24 weeks pregnant and when my parents found out they kicked me out.

Now I live with my boyfriend (16M) and his brothers, my relationship with my parents was getting better or so I thought but then on Christmas they told me and my boyfriend that if we don't get married (or at least start planning a wedding) before I give birth then they are cutting us off completely (communication wise we currently don't get any money from them).

I really don't know what to do, I absolutely adore my boyfriend and see myself married to him someday but I don't think either of us is ready for that

I don't want to loose my parents as I've always been very close to them but I'm also shocked that they would put me in this position.

Any and all advice would be appreciated <3<3

Also I live in Oklahoma where it's legal to get married at 16 with parents or guardians concent

UPDATE!!!!

thank you all so much for the lovely support and advice, it's borderline overwhelming!! We have decided not to get married and are working on a plan for how to move forward with telling my parents and the possibility of going no contact.