advice needed

Kallie
My husband and I have been TTC number 2 for over a year now (so much harder this time around). I had a surge in my bbt (36.7, 36.7) but this morning its dropped .3 to 36.4
AF is not due until the 22nd and she's been punctual of late (i hate her sometimes...) i have noticed im getting fatigued a lot and my nipples are sore. Is this temp drop normal? Thanks ladies