Was this professional of a nurse?

I was at a follow up ultrasound scan for my 4 month old to see how his abcess growth is doing and this is how a conversation went with a nurse doing his observations:

Her : Are you sister or mother?

Me : I'm his mom

Her : Oh okay, his your first?

Me : No I have another son who's 4

Her : Oh really? Both planned?

Me : Yeah, both planned (my first actually isn't but didn't want to get into it)

Her : Same dad for both? You's still together?

Me : Yep and we are!

I was just thrown off by all of these questions, she didn't ask me how old I am but I'm assuming she's close in age as me if not the same, I'm 23 btw.

It's not bugging me that much but feel as if those questions were a little too personal? Idk though, are questions like that acceptable from professionals or even strangers?