I'm 90% sure will be DF. They can't sweep it under the rug because you have the pregnancy as a public announcement that you committed fornication. Even if you say you're sorry they will still DF.
I was DF in Dec 2022 because my then husband and I had sex before marriage ( he is also a brother & was DF as well). It didn't matter that we were now married, it didn't matter that I was sorry, it didn't matter that no one else knew about it.