BFP at 13dpo... BFN at 15dpo... chemical?!

Alexandra

So I had a very, very, very, very faint line at 12dpo, and a faint, but much more clear line at 13dpo. However this morning using FMU at 15dpo the test looks stark white. Could this be a chemical pregnancy? My period is now 2 days overdue... The top test is 12dpo, middle is 13dpo and bottom is 15dpo. Any advice appreciated! :)