we are on the same boat! am 17 days late, but my AF is very irregular. I have been ttc for about 7 months now. And I have all of the sypthoms. I have had an incress in bra size, nipples are sore! I lashed at my hubby a couple of day ago when he came to hug me, he was holding me so tight, to the point I was crying afterward. You didn't state if you AF is regular? I would say go take a blood test asap. And if you are trying to have a baby, and in fact you are prego CONGRATS!
do a blood test it is more accurate than home test.