12 dpo sore breasts... No period

I'm 12dpo and was supposed to start my period on Monday 11/2 according to glow. I'm irregular and usually a couple days off according to the app.
Last week I had cramps as if I were to start my period and nipples were sore (normally Pmd symptoms right? This week especially within the past couple days my breasts have been sore especially last night and this morning I've had off an on light cramps. 
Tired more than usual and very irritable.
My doctor was shocked that my last cycle was sept 27th (lasting 7 days) did a urine pg test but I haven't gotten the results back and this was two days ago. 
Is it possible?????