BBT & Triphasic Pattern

H woke me up this morning in a panic. Yesterday her BBT dropped to just at her coverline. I didn't get a chance to ask her what her temp was before work, so I pinged her about 5 minutes before both of us had to run to a meeting. She pinged me back with 97.7...a number that instantly made my heart sink. For the rest of the day, we secretly mourned this cycle in and out of meetings.

This morning, H was sitting on the edge of the bed with her usual "why are you still laying here when there is a crisis happening" look. The first words out of her mouth? "I haven't walked the dogs yet (This is my queue that the morning routine is about to change). My BBT was 98.4." I failed to compute where there was a problem with this. We are at DPO 11, so the higher the BBT the better. H and I were so convinced that with the BBT drop yesterday there was no chance we were pregnant. H wasn't really prepared to think otherwise, so I can understand why it might be more of a shock to the system if this means we are pregnant.

We did take a pregnancy test. It's a little unclear how to "interpret" the results, but we're fairly certain it's negative. So, what does the spike in BBT mean? Could this mean that we are pregnant but the test failed to pick it up? I'm totally lost! Our only explanation is to blame it on the cat.