Does it mean anything if a guy doesn't send dick-pics?

I've „met“ a guy on insta 2 months ago.
we chat every day and call each other. We will meet in a few days for the first time.
he seems like a very nice and polite guy. He says he wants to find a wife and settle down and marry and have kids (he is 32).
yesterday we sexted for the first time and he won't send a dick pic. He always sends selfies and what he does throughout the day but no dick pic. Also he avoids the topic dick. Or maybe Im overanalyzing.
why would a guy not send his penis? Does it mean he has a small penis? Immslowly starting to think this...
Does it mean anything if a guy doesn't send dick-pics?
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