Hi everyone. Has anyone used these? We are TTC and I wanted to stock up on some internet cheapies - can they just be used after your period is due or has anyone had a BFP in the days leading up? My period is due in 3-4 days and just got a negative - I’m guessing it’s too early to say if it’s def negative or not? My view is that if there HCG levels a test should pick it up by now!