I assume your case has been DQ'd, but you have not received an interview letter. Below is how the process works: Your case will not be sent to the consulate until after NVC has scheduled your interview.
1. Case is DQ'd by NVC.
2. Case then enters NVC queue for your consulate and waits at NVC.
3. Consulate informs NVC of available interview date for upcoming month.
4. NVC schedules interviews for cases at the front of the line.
5. NVC schedules your interview when your case reaches the front of the queue for that consulate.
6. NVC notifies person of interview date via email.
7. NVC then sends case to consulate.
After the interview is scheduled, it can take several days to several weeks for the consulate to receive the case.
Generally, K-1 petitions are reviewed First in-first out. There might be some variances due to individual case background checks, etc. Of course, May priority dates would normally be reviewed prior to June priority dates.
18-24 months. The average, per other VJ members, is about 20 months from filing to interview. The best strategy is to ensure your forms are correct and fully supported. Good luck on your journey.
Put a "0" in them to avoid any confusion at NVC and the consulate.
Place a "1" in item #1 and in item #2.
Place a "0" in items # 3,4,5,6,7
Enter "2" "Household Size".