My husband and I got married during graduate school; we both now have PhDs (different areas of psychology). We decided it made the most sense to keep our original names, but tossed around the idea of us both hyphenating. I got a lot of "hey Mrs. Husband's-Last-Name!" from friends leading up to and following the wedding, but I just politely corrected them that I was keeping my original birth last name (I find the term "maiden name" sort of weirdly antiquated sounding, but that's just me) and people got used to it. We occasionally get mail addressed to "Mr and Mrs Husband's-Last-Name" but again, it doesn't particularly bother me.
The best suggestion I heard in the lead-up to the wedding came from one of our non-academic friends. I told them that we each planned to keep our original names because we'd already published papers under those names. They said, "well, I guess whichever one of you has the most publications should be the person who keeps their last name!" We had a good laugh about it, but ultimately didn't operationalize "most publications" very well - I had more first-authors, but my husband had more pubs total 😛
One thought - if you plan to be working clinically and using a name that is different than what is on your legal license, I think you should make it really clear to clients what your legal name is for insurance/billing/verifying your license purposes (and, while certainly wouldn't expect this to be a problem, if someone wanted to file a complaint against you). From a consumer protection standpoint, our clients have the right to know who is treating them and to be able to verify our credentials if they want to (assuming that your license etc would be under a different, legal name).
As a non-professional aside, I grew up with a mom with a different last name (she had been married before, changed her last name, went back to her maiden name after she got divorced, then didn't change her name again when she married my dad and had me and my sibling), and it wasn't a big issue. I think that, nowadays, so many families have nontraditional naming structures, or are being raised in single-parent households, that it's not a huge deal. ALTHOUGH, she did get an above-average number of people assuming that she was divorced from my dad or otherwise not with him, which might annoy some people more than it annoyed her. (This would also vary based on whether or not you wear an obvious wedding ring, and/or the extent to which your partner would also be involved in kid-related activities at school, clubs, etc.). In her case, people made the assumption because she didn't like wearing a wedding ring and was much more involved in school-related stuff than my dad was, so they assumed she was the primary/sole parent. Just some other food-for-thought.
Congrats on the upcoming nuptials, OP!