October 6, 2016 at 11:35 amSo the past few days my temps shot up. There's no physicall possible way I could be pregnant and I'm fairly certain I ovulated cd13. I haven't ovulated past cd16 on over 3 years since getting my thyroid and pcos under control and I recently had those checked and the medication is still working. So what gives? The only thing I can think of would be maybe estrogen was high and suppressed the progesterone intially? The second set of data matches what my bbt usually is post O but so does the first set. I usually just don't see such a shift later in my bbt O.o