Yes, as laptop mentioned, you also need to file I-693 (completed and sealed by a civil sergeon who is desinated by USCIS) which goes with I-485 package. You should only file I-130 first if your spouse is in Nepal. Once I-130 is approved, the US consulate will contact your spouse for further processing.

(IMPORTANT: I am NOT a lawyer, I am a layman like you. These are my personal opinions and should not be used as legal advice)
- Jangali Maanab