weird cicle...

my periods been normal (well the same) for a few months now always starting on the 23rd and always 6 days long. last month (july) i started spotting on the 23rd and didn't stop for a couple weeks. I'm currently 5 days late. should I wait to test? we've been trying for our second for a few years now failing due to my weight so when I test and it's negative I get upset.