Although we were pleased to see the article by Krempasky et al1 on the contraceptive needs of transmasculine individuals, we have serious concerns about their scientific interpretation regarding pregnancy risk in transmasculine individuals on testosterone. Although Krempasky et al state that the 2014 study by Light et al2 found that 20% of transmasculine individuals who became pregnant did so while amenorrhoeic on testosterone, this number actually reflects those who were amenorrhoeic from the effects of recent testosterone exposure, including those who had stopped taking testosterone as prescribed. Similarly, in 2018 Light et al3 examined 60 pregnancies among transmasculine individuals and did not report any that occurred in individuals who were consistently taking testosterone, with only 1 pregnancy in an individual who had been taking testosterone inconsistently at the time of conception.