Figured this belongs in divorce section due to the real test and experience of the scenario holding up or not would be in divorce court... Mods, move it if it needs to be.

Getting married in TN. We are mid 20s. Currently my (the man) 401(k) has less than $20,000 in it, she does not currently have savings.

Knowing a lot of older guys who have divorced, are still working in their 70s, and blame their ex-wives; Can a pre-nup or any other method protect my POST-MARRIAGE contributions and interest to my 401(k)?

I've been reading that pre-nups for to protect 401k do not hold up in court and that the only way is a waiver after you are married.

Thanks much!