hello, i have been tracking my BBT temp for a number of months ad have unusually low readings: before ovulation it is as low as 35.6 C and after ovulation in mid 36 C. I recently had a urinary iodine test which came back as 900 micrograms so I tested my thyroid. TSH is 2.4 and FT3 is in normal range and FT4 also normal but on the higher side at 19. My periods are regular 25-28 days with a 2-3 day bleed. I ovulate and have a luteal length 11-12 days. I am 34 years old and have been off contraception for a year. In a month I will be starting an antagonist cycle due to my partner's fertility problem of obstructive testicular failure. My concern is embarking on an expensive and emotional journey with such a low temperature. Am I at a greater risk of miscarriage because of my low body temp? I am healthy and fit, don't drink alcohol or abuse my body in any way. Thank you