"...am I in any way commingling my inheritance?"
Now that is actually a legal question; you might want to seek an in-person consultation with an attorney and/or financial advisor.
Generally, though, for property treated as separate property to be commingled and subsequently treated as marital or community property, the property would have to be deposited into some sort of joint account or the other spouse be named on the account, title, deed, or other indicia of ownership.
Again, check with an attorney in your state, particularly if you reside in a community property state.