New Zealand's Prime Minister Jacinda Ardern was regaining her strength with macaroni and cheese on Friday and planned to spend at least one more night in an Auckland public hospital with her newborn girl.
The prime minister's office can confirm that she recently received a private congratulatory message from the Queen on the birth of her baby.
Bakhtawar Bhutto-Zardari, who is the daughter of Benazir Bhutto, the first world leader to give birth in office, also said congratulations.
Ardern's pregnancy sparked a global conversation about working mothers.
The 37-year-old prime minister, who was elected in October, announced her pregnancy in January via Instagram.
She thanked everyone for their kindness and wishes.
A foreign broadcaster has explained why there are so many overseas eyes on Jacinda Ardern and her new baby.
The little girl, affectionately being called the first baby, was born at Auckland City Hospital weighing 7.3lb on Thursday.
Ardern and Gayford, who hosts a television fishing show, had known the sex of the baby for several months but chose to keep it secret from the public.
For the first time, this was done by Benazir Bhutto, the Prime Minister of Pakistan.
She handed power over to Deputy Prime Minister Winston Peters upon entering the hospital Thursday; he will serve as New Zealand's acting leader during her absence.
Ms Ardern plans to take six weeks leave from Parliament.
She said the trick to making it work as a family unit was having a supportive partner, appreciating your partner and switching off from work when it was family time.
"Like the rest of the country we welcome the news of the birth of a healthy baby and are naturally delighted for the new parents".
"The term Prime Miniature is just too flawless. please can we call her nothing else?" a person called Nic tweeted.
"In a way being a mum is as old as civilisation itself, but being a modern couple who are tackling parenthood and professionalism is something that we need more of, we need more role models, we need more examples".
"For New Zealand, these events and the way our country has greeted them will be seen as inspirational by all who advocate for gender equality and women's empowerment", Clark wrote.
"Being parents is a joy and a privilege and we are sure your new arrival will fill your lives with all the happiness our children have ours", Bridges said.