When Meg farrowed last year, Karen was at pains to make sure I understood that I would see two afterbirths, one from each horn.
Yeah, think the phrase I used was "if they don't half fill a bucket, you've not got it all"

But that's only if you're there - some eat it, some don't (I don't give 'em the chance blurgh !)
Sounds like all's well, but just keep an eye on her - any shivering or straining, raise in temperature or reluctance to eat and you'll either have to 'go in' yourself or get the vet out as a matter of urgency for an internal and anti-biotics, just to be on the safe side - but it sounds like she's settled down.
And it goes without saying WE NEED TO SEE PHOTOS

Congratulations