There a quite a few first on both sides aren't there.
My DS is the first grandchild on both sides too.
And, My DS was born with the full set, 4 grandparents and 8 great-grandparents! Unfortunately we now only have 6 of the greats. DH lost a grandfather and I lost a grandmother when I was pregnant with DD.
My side.
DS1 - 1st grandchild - 6th great grandchild.(2nd boy.) - 1st great great grandchild.
DS2 - 2nd grandchild - 8th great grandchild.(3rd boy.) - 2nd great great grandchild.
My side
DS1 - #1 grandchild and #1 grandson
DS2 - #2 grandchild and #2 grandson
I'm the only one who's "bred" so far and it doesn't look likely for at least another 2 years.
XH's side
DSD - #1 grandchild and #1 granddaughter
DS1 - #2 grandchild and #1 grandson
DS2 - #6 grandchild and #4 grandson.
My XILs were lucky enough to have 5 grandchildren (from three of their kids) within 2 years and 3 months!
this bub will be first for my dad
second for my mum and stepdad but first grandson my niece is 1
DH side he will be 5th then another will follow very soon after (he has 3 older stepsisters)
DD is 29th grandchild on my side (can't be bothered counting up the grandsons/daughters bit!!)
and...
2nd grandchild (1st granddaughter) on ILs side.
Yet both lots of grandies treat her as No. 1
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