@Summer do you think it might be late due to extra personal stress you experienced around ovulation time? You've had such a tricky time of it this month haven't you. Having said that, I really really hope you see a second line! It's exciting to be in with a chance!!
Side note: Now let this be a lesson to you...always ALWAYS have a box of FRERs in your home. There is no point trying to fight this addiction.