FICO scores are dynamic. As your reported credit accounts change & age, FICO continuously recalculates. So, the questions isn't when your FICO score will update, but when do your current creditors report to the credit reporting agencies? 
Different creditors have different reporting dates. As a general rule of thumb, within a few days after the statement drops the CRAs usually have the updated balance information. BUT, some creditors report on a certain day of the month. Some report on the statement date, and so on. For example, I know that BoA will report the day after the statement drops. BUT, if I've received a CLI, or sometimes just because they can, they might report mid-cycle as well. I have a Target store card that reports on *exactly* the 22nd of ever month. I have a GEMB card that reports at the end of the every month, but the exact date can't be pinned down. Three other cards, the date varies, but is dependent upon the statement drop date, so I can always pin it down. Additionally, I've figured out that Experian seems to have the updates a couple of days ahead of EQ & TU.
All that being said, don't pull until your creditors have updated the CRAs, and those updates are being reflected. The fun part, is figuring out WHEN those updates are being reflected.
