I'm so confused with this temperature keeping thing! I started taking my temperature about three weeks ago using a basal thermometer but misunderstood and used my armpit for the readings, which came out consistently around the 35.5 mark until this Sunday which was about the time of ovulation when they rose to 35.9. Anyway, after doing some research I switched to temping under the tongue (giving me temperature of around 36.6. However, research tells me that this is way below normal body temperature. I have checked on another thermometer which gave me the same reading. Just wondered if anyone had any similar experiences? Would be really worried (bit of a worrier!) but boyfriend's temps came out even lower than mine (on both thermometers) what's going on? Any ideas?