Is Rihanna pregnant with Saudi boyfriend's baby?

Singer Rihanna has been in news from last month, ever since she was photographed with her Saudi Arabian boyfriend Hassan Jameel.
What sparked the rumors are the pictures from the premiere of her latest film, Valerian.
She wore an elegant flowing red dress and while some suggested she might have put on weight, few went on to speculate her pregnancy.
You can see the picture here
See what the Twitterati are speaking about RiRi - 

I really feel like Rihanna is pregnant
- do??a ?? (@ringmyDORbell_) July 27, 2017

Rihanna is pregnant?????
- Benedicte M. (@BenedicteMuadi) July 27, 2017

@rihanna you're looking pregnant af! Glowing and thickening up. Congrats if so ??
- mostly plur ?? (@WhatsLeftLearn) July 27, 2017

IF Rihanna is pregnant i saY GOOD ON YOU GIRLY
- arzaylea (@arzcyIea_) July 27, 2017

I'm half expecting Rihanna to announce she's pregnant with all those baggy outfits she's been wearing recently.
- Mel Burt (@raisethewaves) July 27, 2017

Can Rihanna eat good without y'all worrying about if she pregnant ? She getting thick so what ??????? I would too with a billionaire bf
- destiny's no child (@sincerely_cnc) July 27, 2017

When is @rihanna going to tell us that she's pregnant?
- Julio Piña (@juliopina_) July 27, 2017

I hope bae @rihanna not pregnant ... I need some new music ??
- Milano (@PandorasBoxxxx) July 27, 2017

Rihanna not pregnant...she just finally got a boyfriend.
- Rated R Thuggastar (@i_ThrewAParty) July 27, 2017