Obstetrician Tran Viet Phuong found the scene so unusual that he decided to take a picture of it. You don't deliver a baby holding an IUD every day.

He commented:

After delivery, I thought him holding the device was interesting… I never thought it would receive so much attention.

Hundreds of internet users were pleasantly surprised after seeing pictures of the unusual scene online. The IUD could've been moved from its original spot while in the womb according to Phuong, which made it ineffective and caused the mother's pregnancy.

IUDs are 99% effective when inserted correctly, they can last from 5 to 10 years. The released copper prevents sperm from reaching an egg and surviving and makes it much more difficult, and it can also prevent eggs from successfully implanting. 

Of course, this all theoretical and things are often different in reality. The mom might decide to switch to another form of contraception after this incident, but we're sure that the family is glad to have a new member.