You've really just begun your data entry, and there are SO many other variables yet to come into play. Often, users will see their refund monitor drop after entering a second W-2. Not to worry....just double-check your entries to make sure they are correct , and forge ahead. I wouldn't pay too much attention to the refund monitor, anyway. It's not truly accurate until the very end of your program and filing your return.
https://ttlc.intuit.com/replies/3798403
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***