I was due my AF 2 days ago, didn't come, I'm never usually late! Basically my symptoms leading up to this have been...
Tired all the time
Slight light brown discharge started today like end of period almost? 
Slight cramp in abdomen
Peeing pretty much every half an hour.
My boobs don't feel sore, my nipples have occasionally felt sensitive.
Did a test yesterday on the off chance was negative.
Not quite sure what to think, me and my partner did the deed while I was ovulating
...any help would be great! 