T.I. Is Offically a Full-Time Rapper, Part-Time OBGYN

T.I. is now in the business of delivering babies -- his own, anyway ... we'll see if he branches out.

Our photog caught up with the rapper at LAX and asked him a slew of questions about the birth of his third child with Tiny earlier this month -- and, according to Tip, he's a full hands-on dad.

Check out what T.I. said when we asked about his role in the delivery room. It's pretty hilarious, except we don't think he's kidding. Also ... it's pretty clear our photog doesn't understand child birthing.

As for T.I. ... he's got a handle on this parenting thing.