Hi There, My Son (age 4 ) And I, May

Hi there,
My son (age 4 ) and I, may have accidentally swallowed some pieces plastic packaging from a pasta bag. I made pesto and it either got blended in with the sauce or was in the pot where the pasta was boiling. Either way, when eating the finished food, I pulled a couple of pieces out of my mouth. I found a piece in my sons bowl of remaining pasta too . I'm worried. What will happen if we have ingested some?

Kind regards,

Rhoda