You don't have to reinvest the proceeds for gain exclusion on the sale of a primary residence.Below are some of the rules to exclude the gain on a primary residence.
Please see Tax Aspects of Home Ownership: Selling a Home for rules and conditions to exclude the gain.
based on your statements you seem to meet all the requirements except one to exclude gain up to $250,000.
if you haven't used the exclusion in the past two years, you meet that test as well.
if your state has an income tax its rules may be different. ,
What you do with the money after the sale is irrelevant--it has been irrelevant since 1997.
SALE OF HOUSE
If your gain was more than $250,000 filing Single, or more than $500,000 filing Married Filing Jointly the sale must be reported on your tax return. Whether you re-invested the gain in to another house is irrelevant. If you have a Form 1099-S go to Federal>Wages and Income>Less Common Income>Sale of Home (gain or loss)
If you owned and lived in the home as your primary residence for at least 2 of the last 5 years on the date of the sale, you do not have to report the home sale if the gain is less than $250K filing Single, or less than $500K filing Married Filing Jointly (and you both owned and lived in the home for at least 2 years).