Last year, by husband and I both received FICA refunds. How can I know if we will also receive refunds this year?

Do you mean excess SS taxes withheld ?  

https://finance.zacks.com/file-social-security-tax-overpayment-refund-3503.html

If you had too much SS withheld then it will be added to your refund.  Remember that you must enter each of your W-2's under your OWN names in the software, so that you do not artificially inflate your refund.  If you do that, you will get a letter from the IRS in a year or two, demanding that you pay back the refund with interest.

For 2019 the maximum amount PER PERSON for SS is $8239.80.  If either of you has more than that total amount for your W-2's in box 4, then you would be refunded.   Most commonly this would happen if you had more than one employer.  

But be careful--if you file a joint return you must make sure you are not entering all of the income and W-2 data under only one of your names.