The Sheik’s Expecting Bride by Erin Snihur

A princess in title only has very little to offer a Sheik like Kamran al-Rafiq of Nilan or so she thinks…

Princess Hasna al-Noor has always wished to fulfill one last dream of giving her virginity to her childhood crush before being forced into a loveless marriage. Instead, she finds herself pregnant and without any options.
Rather than her childhood crush standing up to take responsibility for their actions as is expected, his brother, Sheik Kamran, comes forth.
Sheik Kamran al-Rafiq has a secret. He has been in love with his brother’s friend, Hasna, since childhood. Now, he’s standing beside her, saying his marriage vows as earnestly as he can manage and all he can see is the unwillingness in her eyes at being forced to marry him.
Why? Because she is carrying his child and she doesn’t even know it is his.