The former Girls Aloud singer posted the black and white photograph on Easter Sunday of herself giving her little girl a kiss on the cheek. The close-up shows her little bundle of joy at just over two months old.
"Introducing Anaíya. Xx" tweeted the Irish singer alongside the intimate photograph.
Read Giovanna Fletcher's honest blog post about her first month of motherhood
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The 28-year-old and her fiancé Jason Bell, 36, welcomed their first child in February this year.
And Nadine has kept a low profile since, enjoying this special time with her newborn baby.
On the first Mother's Day of many to come, when Anaíya was about six weeks old, Nadine took to Twitter to share the difficulty of leaving her baby for the first time.
I haven't left her side since she was born. I tried to go out one day & broke my heart crying in the driveway. Maybe tomorrow...... Xx— Nadine Coyle (@NadineCoyleNow) March 30, 2014
Two weeks after her daughter was welcomed into the world, Nadine showed a glimpse of what motherhood is all about. "I have to get back to staring at my little pink bundle (my life since she was born) Loads of love to you! 😘😘💗" she tweeted.
After the pretty brunette broke the happy news of her pregnancy over Twitter back in February, she spoke to HELLO! about the confusion surrounding the baby's father.
"I think we just forgot to tell everyone we were together," she told the magazine.
"When I said I was pregnant I thought, 'Why's everyone wondering who it is? Then I remembered, 'Oh yes, that's right. I do stuff on TV and people are confused. So this clears it up!"