hello,plzz read carefully..i had sex with gf..,.in 12 sep and she took unwanted 72 on 14 sep 3.30pm then again i had sex on 17 sep 5 pm 1.5 hour delay of unwtd 72 range.she geting delay on her period,,,, 25 aug she got her last period but then till now she did t get her period delay of 5 days.two days ago i test her pregnency it shown negetive.plzz tell me should i do test her pregnancy again????????