This is my first month charting bbt and it seems all over the place. I dont even think FF knows how to read it! Im still breastfeeding and generally up during the night with ds so idk how accurate my temps are. I had a positive opk same day as a big temp spike but i also had the longest rest before taking temp compared to rest of the month. I had plenty of watery/ ewcm for few days before and day of temp spike but day after temp was down and only had a little watery cm. This mornings temp was even lower again but i had a bit of ewcm again so totally confused! I read something about a corpus lutuem dip, could that explain it?