Having had a hormonal coil inserted, the last thing Lucy Hellein expected was to discover she was pregnant.

Ironically, this was the situation the mother-of-two from Alabama found herself in last December.

The contraceptive implant, which is believed to be 99 per cent effective, was found by midwives after she gave birth to her son Dexter Tyler last week.

The ironic photo of Dexter Tyler clutching his mother's hormonal coil, designed to stop her from getting pregnant, has been shared more than 71,000 times on Facebook

Ms Hellein, from Alabama, is believed to have conceived just days after it was placed inside her uterus.

At the time, midwives told her that the coil had probably fallen out because it wasn’t showing up on an ultrasound.

But it was later spotted behind her placenta as she underwent a caesarean.

A picture posted on her Facebook page showed Dexter Tyler clutching the device, giving the impression he had been born holding it. Lucy Hellein was fitted with the contraceptive in August last year, but she was told she was already 18 weeks gone when she discovered she was pregnant before Christmas - suggesting she had conceived just days after it was planted inside her

Despite being fitted with the 99 per cent effective contraceptive in August last year, she discovered she was pregnant just before Christmas.

She was told she was already 18 weeks gone, suggesting she had conceived just days after it was planted inside her uterus.

Her obstetrician had told her that the coil had probably fallen out because it wasn’t showing up on an ultrasound.

But to her amazement, it had been hiding behind her placenta and was in the hands of her 9lbs 1oz newborn when he was delivered.