What a blessing for Rihanna! And now for all of our timelines! The Umbrella singer gave birth to her third child with A$AP Rocky earlier this month - on September 13 as it turns out! Photos: Justin Bieber Shares Never-Before-Seen Pics Of Hailey's Pregnancy & Baby Jack! We know the date now because RiRi decided to spill the deets in a super sweet Instagram post on Wednesday! She posted not just her daughter's birthday but also the little one's name! It's...