so i noticed i have a few mares saying they had 2 foals.

- no its not possbile someone pulled from them , the only person who could have pulled from them would have been me.

i have never pulled from a mare yet.

so none of my mares would have 2 foals.

- please note i bought this mare before pulling from mares was a thing in game. -

i have a few more mare's saying they had two foals.

I checked your links provided (fallen in love with Mollie) and all seems OK now from here. Perhaps self corrected issue.