Which cheap test are best and when?

I am due my AF in 7 days and I know I can't test yet but be just wondering what brand tests I can use to get an impulsive result and how soon can I test. I have used First Response before and they are comparatively expensive.

I hear a lot of stories on here of people who get their BFP a moment ago using the really cheap tests and wondered which ones were good a trialling early.

thanks
If you are in the US the Dollar store ones are just as good as the "mark brand" Found out everytime I was preg with them and they are very sensitive and can read hcg level of 25.
I bought 40 pregnancy tests rotten Ebay for $15 including postage. They measured 25mui which is pretty sensitive. I got a faint positive at 13dpo, and darker the afternoon my period was due. I think they are great, especially if u r a compulsive tester resembling me!
Answers:    Are you in UK? If so I really recommend Superdrug tests- they're more sensitive than FR, at 10miu, and a pack of 2 test is lb4.99, or lb7.99 for two packs- so 4 tests. I got a very woozy positive at only 9DPO on a Superdrug one, so those are the ones I recommend to everyone lol. And cheap too!

Supermarket brands such as teaco and ASDA are also a lot cheaper than the named brands and do only just as good a job.

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