LOL. I'm old luvsjack, back in the good old days we didn't have partys at the drop of the hat and finding out the sex of my kid was considered a very private affair.
So sorry no I do not think it's super special or warrants a big family party. And by the time kid 3 came around, all this mom of stair steps wanted was 5 minutes in the bathtub without some one saying "mommy, mommy, mommy".
I would have konked my dh in the head with a frying pan had he come home and said he had invited 20 people over for a party.
LOL. When I had my second the girl in the room had a birthing party.

are you kidding? You think I would want a host of my friends a family looking like hell with my legs up in stirrups.
And yes being pregnant was an exciting time
FOR ME. Did my girlfriends think it was as thrilling as me? I think not, and not a lot of them where in a rush to exchange positions. See we conviently forget about the majority of not so exciting things (barfing, swollen ankles, tender girls, hot flashes, peeing every 3 seconds, need I go on)
It's like those new moms who insist on whipping out pictures every time they think their kid did some thing so adorable. Sure you think it's absolutely hysterical that jr is covered in spaghetti sauce, for the rest of us who have to sit through 75 pictures and a blow by blow description. Nah, not so much.
There is a reason why it's called "oversharing".
Nope. I am happily old fashioned. and yes I know life is short I'm a widow and the funny thing about that is, the times I treasure are
NOT the big parties and phoney celebrations. The things I mourn are when me and dh told jokes in bed, laughing so hard we woke the kids up, the Sundays sitting in the back yard during the summer without any family just him, me and the kids eating crabs with our hands, calling him up on the phone at work making a "date" in Philly at a local bar or when my oldest son hit the game winning home run at the bottom of the 9th with 2 outs.
for most people who realize life is short, it's the everyday
NON party days that they mourn. Ironic isn't it. we go through all this hoopla trying to make thing "memorable" and usually it's not what makes us smile.