Baby Watch

Tristan Thompson may have hit a speedbump on his way to fatherhood ... he isn't named on his new son's birth certificate.

Tristan's ex, Jordan Craig, gave birth to their son on Dec. 12th in L.A. -- and while she (obviously) lists herself as the mother, the space for the other parent is left blank.

What's interesting is their son, Prince, has the last name "Thompson."

So, what does it mean? In California, the father has to be present at the hospital in order to be named on the initial birth certificate. However, it's possible to add the name later.

Kobe Bryant has a NEW Christmas Day tradition -- one that doesn't involve basketball -- and it seems his wife, Vanessa, couldn't be more excited about it!

FYI, Kobe spent 16 of his last 20 Dec. 25ths playing in the NBA's Xmas day classic -- and became the #1 all-time Xmas day scorer with 395 total points.

But that was before he retired ... because this year it was all about his new baby, Bianka -- and Macaulay Culkin!

In fact, Vanessa seemed PUMPED about her new holiday plans when she posed about it on Instagram ... saying, "No more games on Christmas. 🏀 🎶"For the first time in forever..........."- (Princess Elsa voice)🎶❄️❄️❄️ #PeacefulHoliday #Christmas #FamilyTime 🎁🎅🏽🎄#HomeAlone2."

Kobe also posted, "Home watching a classic and realized this was my face 1 week ago when I realized I didn't have the NBA package LOL #mindblown."

Welcome to your new life, #24.

Can't ignore the obvious ... Gisele Bundchen had a pretty obvious bump during a modeling shoot in Brazil earlier this month -- begging the question ... preggo???

Gisele and Tom Brady were extra touchy-feely during a DeflateGate vacation to Italy back in September ... back when G's belly was its typical flat self.

So, could baby #3 be on the way for the 36-year-old supermodel ... or was it just a big lunch?

Here she is ... the newest member of the Mamba family!

Vanessa Bryant just posted the very first pic of her new baby daughter, Bianka Bryant ... born December 5.

Mrs. Mamba added, "Kobe and I are beyond excited to welcome our newest baby girl, Bianka!!! #BabyBlessing #SweetBaby #AnotherAngel"

It's the couple's 3rd kid.

Congrats!!

Joseline Hernandez says she has hard evidence she's clean and sober, but her soon-to-be baby daddy, Stevie J, is not buying it.

Joseline filed docs and attached 3 drug test results that show she tested negative for various drugs -- including cocaine, amphetamines and weed. She also attached a note from her care provider stating she's had a healthy pregnancy.

In the docs, Joseline says she voluntarily submitted to the drug tests, and Stevie's claim she's abused drugs throughout her pregnancy is a sick ploy to embarrass her.

Joseline clapped back with a shot of her own -- Stevie's $5,000 check for her medical costs bounced, according to docs.

Some good news for Brock Osweiler ... he's gonna be a dad!!

TMZ Sports has learned Brock's wife, Erin, is pregnant with a little girl due in April!

It's the couple's first child and we're told Brock and Erin's families are super excited.

Brock and Erin got married back in 2015 -- before he signed his massive $72 million contract with the Houston Texans. So, someone's gonna get one helluva push present!

Stevie J did it without Maury Povich, unfortunately, and he's confirmed he IS the father of the baby Joseline Hernandez is squeezing out within the next month.

Stevie's DNA test result showed he indeed did the deed -- according to new docs he filed -- and now that he KNOWS, he's asking for visitation rights ... but also for primary physical custody. Doesn't make sense, but maybe he's covering all his bases.

Joseline's due Jan. 9, and in the docs he says he absolutely wants to be in the delivery room.

Stevie's repeating his request for Joseline to be drug tested because he claims she's abused drugs and alcohol throughout her pregnancy, and fears it's effected the fetus. He wants the infant drug tested within 24 hours of birth.

The docs include a text message he says came from Joseline -- "You will never see your daughter f*** n****."

Ciara and Russell Wilson hit the town Saturday night, and she's definitely poppin!

Ciara's starting to show after announcing her pregnancy back in October. They clearly had a happy meal at Craig's.

They left in their vintage Rolls. Nice life if you can get it.

Ryan Lochte's crappy 2016 is ending on a high note -- he just announced he's expecting his first kid with his Playboy model fiancee Kayla Rae Reid.

Kobe Bryant's third feat got the triple B treatment.

TMZ Sports has obtained a copy of Kobe and Vanessa's brand new baby certificate and it lists her full name -- Bianka Bella Bryant! She was born at exactly 4:09 PM at Hoag Memorial Hospital in Newport Beach.

Patriots' star receiver Julian Edelman dropped the ball when it came to his brand new daughter's birth certificate.

TMZ Sports has obtained a copy of Lily's birth certificate which lists her full name -- Lily Rose Mary Edelman, and model Ella Rose's name is in the "Mother" box. The "Father" box is blank.

Seems weird since Julian already posted a proud papa shot -- and Ella always maintained he's the dad, even when he wasn't admitting it.

We did some checking and the explanation is simple. When the parents aren't married, they both have to be present when their names are put on the certificate. Julian was already on a flight back to Boston when it was submitted.

Irina Shayk's employing the oldest trick in the book -- super baggy sweaters -- to conceal what's widely believed to be the baby in her belly, but her mouth is blowing the secret.

Irina was out Sunday in L.A. with BF Bradley Cooper's mom and couldn't resist sucking down an ice cream cone during a grocery run. Cravings much?

She and Bradley have been tight-lipped about the pregnancy rumors, but frozen desserts -- on a chilly day in L.A. -- and this profile shot kinda tell the story, no?

One thing's for sure ... it's gonna be a really, really, really good-looking baby.

Bristol Palin has bun #3 in the oven ... which means the honeymoon is officially over for Bristol and her husband.

Sarah Palin's oldest daughter is expecting her second child with Dakota Meyer. They just got married 6 months ago, and Bristol told "Entertainment Tonight" she's due in the Spring.

Do the math and it's clear these 2 work quickly.

Bristol and Dakota already have 1 child together. She, of course, also has Tripp with former fiance Levi Johnston.

Chris Paul is super happy that his friend, Kobe Bryant, just had his 3rd baby girl -- but he has a message for the NBA legend ... "Keep going 'til you get a boy!"

Kobe Bryant has another three-peat under his belt ... 'cause his wife, Vanessa, has given birth to the couple's third child ... TMZ Sports has learned.

The Bryants announced some time ago they were expecting another little girl ... and we've confirmed the bouncing baby mamba was born this week in the OC.

Of course, 38-year-old Bryant has a lot of time to play daddy now ... he's retired from the Lakers and committed himself to more important life pursuits ... like ridding the family home of pesky intruders.

CONGRATS!!!

Niall Horan looked like he knew he had just let a giant cat out of the bag leaving one of L.A.'s most expensive baby stores with a basket of pink stuff.

Niall's old 1D bandmate, Liam Payne, and his partner, Cheryl Cole, are reportedly expecting in early 2017, but haven't revealed the sex of their baby. Naturally 1D fans jumped to the conclusion the girly stuff Niall's toting is for the couple.

Of course, it's possible the basket is for someone else ... after all, it is the holidays and Liam and Cheryl are hunkered down in London.