A mother has given birth to a whopping 14-pound 15-ounce (6.77 kg) baby in Oxfordshire, making him the third-biggest newborn ever in the United Kingdom. Cherral Mitchell, 31, from Thame, Oxon, needed two midwives to haul out baby Alpha before he left staff shocked with his weight. The little boy, who was born at 38 weeks’ gestation on Oct. 28, has since been nicknamed “Baby Hippo” and “Butter Bean.” He is believed to be the UK’s third-biggest baby, with the current record holder being 15-pound 8-ounce (7.03 kg) Guy Carr, born in 1992. The second biggest is 15-pound 7-ounce  (7 kg) George King, who was born in Gloucester in 2013. Alpha’s birth was also a surprise for the parents, Cherral and Tyson, 35, because Cherral got the contraceptive coil before he was conceived. In addition, the parents weren’t aware that Alpha was going to be so big. “Everyone kept laughing …