No actual period but nervous to take test?

Lacey
Hey girlies. I was supposed to get my period about 5 days ago. The time I was supposed to I started spotting a little. The next day I was still spotting... kind of a brown watery "blood". The very next day it was completely gone. I bought 2 tests. The first one was negative, and the second must have been broken because the ink had looked like it had ran out. It was in the middle of loading but then stopped and no lines popped up... not even the tester lines? 
The only symptoms I have is sensitive breasts and a constant dull aching in my uterus. The aching doesn't feel like a cramp, more of like a tinge throughout the day. Thanks ladies 😘