2 days late... BFN

Hey y'all, so hubby and I are ttc baby #2! My periods are very regular and my last two were 10/12/16 and 11/12/16 its now 12/13/16 and i still have no period or signs of it coming. My breast are sore, more cm than usual and its white, also i woke up an hour early this morning with horrible nausea. Anyways i tested yesterday & this morning and both were negative. I guess my question is how many days late were you when you got a positive? I found out with my son at 3 weeks pregnant!