I threw the box away so I forgot to check how sensitive these tests are and their website doesn't say. I got a positive yesterday morning on a superdrug own brand digital test. I've never used a digital pregnancy test before, there is no way I misread the result. I was quite shocked as we had been using condoms. The reason I tested was because I'm late for my period and That is very odd for me. So I took the 2nd test before bed which was negative. I also took one of those cheap test strips from Amazon this morning- also negative. So do you think I was pregnant and it was a 'chemical pregnancy'? My period is 8 days late, I'm usually on time. The only time it could have been possible I conceieved (with a condom) would mean I ovulated late.