Hi, I'm a bit worried and need assistance over this. Me and my girlfriend had sex earlier this month and to be on a safer side I used two condoms at a time. It was first experience for both of us. The problem over here is her date for last month was on 19 Feb nd it's 29 mar now and she's not getting down. We both were worried about it so I bought a prega sure kit to check if everything if fine or not and results were negative. I'm pretty sure there was no chance that she conceived it as I had double protection plus the results came negative but she's not getting down and it's been more than 40 days now.