Ok... need your thoughts

I came off the pill December last year and since been having regular periods... 28-32 days between.

We have been trying for a baby and are active round mid cycle, but not as much this month due to hubby being sick.

I'm now 9 days late for my period and been having sore boobs, a lot of clear discharge and minor cramping like before getting my period but still nothing. I did a HPT this Morning and showed negative!

Should I go see the docs and get a blood test, just finding it all very strange.