I have officially "skipped" my period sice I'm over 3 weeks late

Took a pregnancy test 5 days ago and it's still negative. I have felt a little nausous in the early morning for the past couple days along with mod swings and today I have a headache(I never get headaches). I have a high Basal temp (98.6-98.2) for the past 5 days (that's when I started testing anyways). My nipples has hurt very bad for about a week but it's going away. cervical mucus is thick/dry. So I'm hoping all this is happening because I ovulated and didn't notice it while I was on vacation.
So if I was pregnant, I would be over 6 weeks....
hopefully I will have a period next week since that was my original schedual for it.
I have a coupon for "first response" test so I'm going to try testing again in a few days.
so when they say "sensitive breasts" does that mean overall? My breasts as a whole are not feeling painful.