Incorrect information on Recovery Rebate Credit.

I accidently entered the wrong numbers in the Recovery Rebate Credit section while filing (forgetting to include one of my dependents in the math). Now it seems my return is in limbo with no visible transcripts and only one bar on the WMR, it was accepted on 02/12 but no movement since then. I tried to go through and amend the return through TT but it says I cannot amend yet.  So my question is: Will the IRS just reject my return and then I have to wait a bit before i can file an amended return or will they adjust it themselves?