Who files i130?

Hello! I’ve been in the US for 9 years now on J1 and F1 visas. Have my own USCIS online account. I’m getting married in a couple of weeks and want to file for green card ASAP. Should my husband create his own USCIS account to file i130 for me or can we do it from my account? If he needs to create his own, do I file i485 separately from mine? Want to avoid legal fees as we are experiencing a baby. Thank you!