Mean Girls' Rachel McAdams 'gives birth to baby boy' after 'keeping pregnancy secret for nine months' claim US reports

Mean Girls' Rachel McAdams 'gives birth to baby boy' after 'keeping pregnancy secret for nine months' claim US reports

US reports claim the Mean Girls star was spotted with her Dear John writer boyfriend who was carrying their newborn alongside her. The couple have never made a red carpet appearance together as they try to keep their relationship out of the spotlight….