Congratulations are in order for Olivia Culpo and Christian McCaffrey! The couple announced that Culpo is pregnant with baby No. 2 via Instagram on Friday — which also marked Culpo’s 34th birthday. “Best birthday gift ❤️ Baby #2 coming soon 🥹,” she wrote alongside a photo of her growing family as they enjoyed a picnic. Christian McCaffrey and Olivia Culpo (pictured above attending the Abercrombie & Fitch Fashion presentation in February) are expecting baby No. 2. Getty Images for Abercrombie & Fitch The couple (pictured above in a selfie) shared the announcement via Instagram Friday as the former pageant queen marked her 34th birthday. Instagram/Olivia Frances Culpo Culpo and McCaffrey opened the Friday post with a photo of them on a white sheet in a field of greenery with their daughter, Colette, happily sitting on her mother’s lap while eating an apple. In a second snap, the soon-to-be mother of two cradled her growing baby bump as she posed against the nature-filled backdrop.…