I don't think it can be used as you describe. Please tell me which category on the form, Part 1 (application type), fits the situation of a person who entered via a K-1. Your receipt for a proper I-485 already grants the applicant authorized stay in the US until the I-485 is adjudicated. Yes, you are out of status after 90 days (via a K-1), but not accruing unlawful presence.