Tik tok is a platform where people do and say things to get attention and go viral. Its not a platform to get medial or health advice on.
Honestly I would advise you (and anyone else finding it hard to trust your bc and/or struggling with anxiety around pregnancy) to delete that app entirely.
Dozens of very similar posts have been made here, many other users have been scared by the scaremongering, these stories are either exaggerated or leave out vital information. Even if you don’t actively look for those kind of posts they still show up on your feed. Protect yourself and your mental health and delete the app, it’s not worth the stress and anxiety it can cause.