No, no way to go back in time and get that two extra months. The only way to get more time living in the house is to actually move back into the house. Then your time residing in the house adds to the prior period.
However, as @VanessaA points out above, you are entitled to a partial exclusion of the gain. And it'll be almost the full amount. And since you've only had the house for three years-ish that will probably be enough to make it non-taxable. But you should certainly enter the sale into TurboTax and check before you get any more stressed about it.
Good luck!
@Vegasrental
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