Buldge in vagina

ADRIANNA • Expecting my miracle baby girl 👑 on blood thinners #blessed 🙏

There's a buldging piece of skin coming out from the top of my vagina when I stick it back in it goes upwards what is this it's not my cervix... Dr said it was a cyst but I don't believe it is 28 weeks 3days I'm a nervous reck