It's an old story from https://www.archiveofourown.org . But I can't find it now maybe it got deleted .

Anyways the plot is :
Tauriel got captured by Bolg , and carried his child and gave birth .
The author also wrote another forced pregnancy theme story names Bane of Veronica or Victoria ( and it got deleted also , because I couldnt find it )

has anyone saved those to computer ? Can you share it
thanks

I think I have it. I'll get back to you tonight.