help please 💔

im new to bbt and yes I take it every morning around 7am-8am i am a very deep sleeper so not sure if I move alot i take it internally also this is my first bbt chart i have done i know its very erratic up and down not sure why I've not been diagnosed with pcos i have very regular periods every month and never had a problem we have been ttc since December 2017 had a miscarriage febuary just hope there is someone there that may help also I have dropped in temp today is this maybe an indication of ovulation please help x