I've heard of implantation temp dips, but has anyone heard of or experienced an implantation temp spike? Post ovulation I usually hover around 98.3 - 98.5, well Friday my temp spiked to 99.1 (6dpiui). I didn't think anything of it because I wasn't feeling well (was extremely dizzy when I woke up and thought it might be s/e of BP med). Well yesterday it was 98.7 (7dpiui) and this morning it was 99.0 (8dpiui) - still much higher than usual. What do you guys think?