Is it just me or is this a very strange encounter with a cashier?

I went to a local gas station to get a pregnancy test and some snacks with my boyfriend and this went down.
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Boyfriend: are those pregnancy tests up there?
Cashier: yea, which one you want?
Me: I’ll take the blue one.
Cashier: is this yalls first time?
Boyfriend: first time what?
Cashier: first time baby?
Boyfriend: oh no it’s just to have
Updates
+1 y
Well I guess I’m wondering why she had to say anything at all
Is it just me or is this a very strange encounter with a cashier?
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