The mum uploaded the video in response to another TikTok user's question.
TikToker @tawnee117 posed the question to her followers: "I wanna see who had the biggest baby. Whoever sees this video, tell me the weight of your biggest baby."
Mum @erikasilenceweber took up the challenge and uploaded a response video.
She said: "So everyone keeps tagging me in this and telling me I should do this.
Now six months old, her son is already wearing clothing meant for 18-month-olds. Picture: TikTok.
"At 37 weeks I went in for an ultrasound and my son was weighing in at 9lb 15oz (4.5kg) so we scheduled for a C-section.