HELP with clearblue advance ovulation tests!!

HELP!! I took the test this morning and this is now day 5 of high fertility (flashing smiley face)! Normally I get one day of the flashing face and then hit my peak. What is happening?!? I saw online where this happened to some people, they contacted Clearblue and the company said to just keep testing. I'm wondering if this has anything to do with having just had my HSG test done?!? Maybe it opened my tubes a little and I'm having a more fertile cycle?? Any advice is appreciated!!!!!!