Hi im 27 and have to children who are 6 and 8 , I think the home brand tests are just as good as the higher priced test ie first response and if you test on the day ur periods due generally there pretty accurate but if u get a positive result and want to know more ie how far along you are then the digital test are worth buying once , we were trying to conceive for about a month now and i researched about witch test would detect a lower amount of hormone so I could find out a few days earlier this time so I brought these dip tests that the nhs hospitals use to test for very early pregnancy and detect 10ml off hormones , I also desided to buy these as first response even tho is I'm sure very good is expensive to keep buying a most ppl no if u test early u could still get a negative result and need to test again and if u dint get pregnant that month then u need to carry on trying and testing any way I also had a sainsburys test too now my expected period is 2 day I tested with the early test first thing in the morning 3 days ago witch was negative so I test again then next day with the early test and the sainsburys test to but still negative so I left it a day and most tests tell u to test again in ur expected period with is 2 day so I did the test first thing and it showed as negative so after around 6 mins of waiting as i had to wait for 10mins for test to fully work i was about to throw it away when I thought mite as well test with the sainsburys test and it was positive straight away clear as day then I immediately looked at the early pregnancy test to see a extremely faint line that I cud off easily missed so it goes to show how different tests work even tho the sainsburys test from wot I've found out tests for 15/20 ml of hormone I would have thought that the early pregnancy test that test for 10ml would have showed a more visible line than I got and a positive result earlyer than I got too but it does all depend on hormone levels at the time from experience this is my third pregnancy I've always used home brands and tend to test the day off my period and got a positive result straight away no waiting the time that I conceived but I know it can be different hope that helps