How can I change the month of health coverage I entered on this site? I just need to change them

@randymarchman  If you haven't e-filed your return, you're able to edit. See Where do I enter my 1095-A?

If you've already e-filed your return and it's "pending", you won't be able to change it. 

• You'll have to wait until the IRS accepts or rejects your return.
• The IRS has announced that they will begin accepting and processing 2020 individual tax returns on February 12, 2021.

If your return gets rejected, you'll be able to change your 1095-A form and submit the corrected return.

If your return gets accepted and the IRS changes the amounts on your 1095-A and you agree with the changes, you don't have to amend your income tax return.

Otherwise, you'll need to amend your income tax return. See  Do I need to amend? 

• NOTE: At this time, you're not able to  amend a 2020 income tax return. As of today, it's estimated that the IRS will finalize the 1040X form on 2/18/2021. However check the forms availability to see any updates to that date. 
• After you file your federal amended income tax return, you can check the status of your Form 1040-X, Amended U.S. Individual Income Tax Return using the Where's My Amended Return? online tool or by calling the toll-free telephone number 866-464-2050 three weeks after you file your amended return.

Note: Generally, Form 1040-X,  Amended U.S. Individual Income Tax Return, must be filed within three years of the date the original return was filed, or within two years of the date the tax was paid, whichever is later.

[Edited 2/10/2021|1:25 pm PST]