u/gatos90

The past few months my ring has said I ovulate between days 16-18. This month it was predicted at day 17 which I thought was correct because of that rise, but now I have had two days in a row of very low temps. Does anyone know what that could mean? Now the estimated date is tomorrow which would be day 21. I did have an iud removed in December but the estimated ovulation date has been fairly consistent for January-last month, then this month seems very odd.