Cheryl and Liam Payne could become parents by Christmas according to new fan theory

CHERYL and Liam Payne's baby could be born by CHRISTMAS according to a new fan theory sweeping the internet.

The pop superstars have been at the centre of a pregnancy riddle for weeks as fans became suspicious of the 33-year-old suddenly hiding her tummy and only having photos taken while sat down behind tables.

However, the secret was well and truly out on Tuesday night when Cheryl stepped out in all her glory to attend a charity carol concert with Liam, 23.

The sight of 33-year-old Cheryl wearing a clinging khaki dress truly confirmed that she is the bearer of the second 'One Direction baby'.

But now fans are eager to know WHEN the baby will arrive - and some seem to think it's in a matter of WEEKS.

One fan tweeted: "I didn’t believe there was a bump tbh but I do now, probs a Xmas baby on the cards. Congrats Liam and Cheryl."

Another added: "Based on looking at her bump size. if i’m right, liam wont be leaving the UK until its born."

Adding fuel to the theory is the fact that Chezza's loyal mum Joan was seen buying her a pregnancy pillow in Mothercare back in September.

The pillows - shaped like long sausages - are designed to support an expectant mum's bump relieve pressure on the hips from week 40 all the way until birth.

Most mums tend to start using them in the second trimester, which has given internet sleuths some numbers to crunch.

If Cheryl was between 12 and 24 weeks when the pillow was purchased, she would be between 22 and 34 weeks now, well into her third trimester.

Susanna Reid however thinks she is about six months gone, admitting on Good Morning Britain that she had been "studying" pictures of the former Girls Aloud star.

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