So yesterday I took a test using a strip and got a BFN immediately. I didn't believe it and did a first response test and immediately came up. This was done at 18:30pm. After drinking loads of tea and some Pepsi max, so wasn't expecting a very strong line. I've got a little bit of insomnia and decided to test (it's 5am UK time) and two have come back immediate positives, one very very faint and one negative. Could my HCG levels be stronger on an afternoon? Should I do a digital?