Me and My oh thinks there's something there

I'm off out tonite for a hen do my best mates, I've been trying to convince for 6 months, I'm due my period in 2 days time and I wanted to test as I wanted to have a good time and knowing I could be pregant will just make me on edge all night and proply won't drink, I took this and I thought I couldn't see anything I took it into natural light like looked at it by my window and could see a line realy faint line I will test in 4 hours time but I'll be ready to go out I don't want to let my mate down but I don't want to go out if I am I just don't know what to think tweeks welcome