Beyonce SAYS she did not have a C-Section as earlier reports say she did.

Beyonce says she gave birth to Blue Ivy the same way women have been giving birth for thousands of years ... through her vagina -- insisting she did NOT get a c-section.

There were reports the singer birthed Blue with the help of a scalpel -- but Bey and Jay-Z released a joint statement moments ago, claiming, Blue "was delivered naturally at a healthy 7 lbs and it was the best experience of both of our lives."

The couple adds, "Her birth was emotional and extremely peaceful, we are in heaven. We are thankful to everyone for all your prayers, well wishes, love and support."