Tyra Banks made a surprise announcement on Instagram, as the supermodel revealed that she and her Norwegian photographer boyfriend Erik Asia welcomed a baby boy via a gestational surrogate. Tyra had kept quiet about planning a family with her boyfriend, so fans were surprised when she made the baby annoucement. Tyra told fans, “The best present we worked and prayed so hard for is finally here. He’s got my fingers and big eyes and his daddy Erik’s mouth and chin. “She added, “As we thank the angel of a woman that carried our miracle baby boy for us, we pray for everyone who struggles to reach this joyous milestone. York…