Applying for K1 and questions about it !

Hi everyone!

So me and my boyfriend have been dating for 2 years and will apply for k1 anytime soon now, but i have some questions about it before.

▪️ Criminal records with archives - Do i need to add them with filing k1 or after when i go to interview? ▪️ How early can i do medical exam before the interview? (My exam and interview would be in a different country!) ▪️ Proof of evidence- is pictures of us, meeting friends/family's are enough or they would need plane tickets, notes.. as well? ▪️ How long can the whole process take, when we file it in couple of weeks? Is there any page we could look at to see how fast they are moving forward with cases? (I'm coming from a very small country where there is maybe 1 person a year who is applying for k1, would it make it faster then? )

Thank you so much in advance!