My cycles are 25/26 days and would have been due either yesterday or 2 days ago. When it didn’t arrive yesterday I took the first clear blue test in the picture. Thinking it’s positive I took the digital which came back negative. Bought the first response test and tested last night. A result was supposed to appear in 1-3 mins so after 3 mins I couldn’t see anything so assumed negative. Happened to see it about an hour later and it has a line. Figured because I waited more than 10mins it was invalid and I would test in the morning with FMU. Third test is a BFN but still no period. Just did a fourth test and I think I can still see a line. Possible chemical or too early? I wasn’t <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> this cycle due to vacation.