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Pregnancy & Safer Sex in FTMs

The following letter was written to the editor at TransHealth.org:*

Dear Editor,


I am a 37 year old post-op (top only at this time) FTM or transsexual male and my questions is, can FTMs become pregnant while on Testosterone? I have been on T for almost two years now and recently I did something that I never thought I would do. I had a one time fling with a man and the condom literally broke (I kid you not) and he accidentally came inside me and now I am REALLY worried. He tells me that he did have Vasectomy 10 years ago and he does have a scar to prove it and I did check out the details to see if what he knew about Vasectomies was accurate and it was; and so I’m hoping he’s telling the truth but…


I identify as a straight man, but had been bi curious for a while and so I took a chance, but now I’m worried that I’ve sealed my own fate. Can you PLEASE help? I have not had a hysterectomy yet and so I am REALLY nervous here. I have been searching online for any info on FTMs and pregnancy after T and have had NO luck. I would appreciate ANY help here. Thanks again. Peace and light.

> Name Withheld

Due to some less than spectacular information provided, I decided to comment on the thread. I realized it would also be useful here on FetLife…

1) The OP didn’t post dosage taken, HOWEVER, regardless of whether a monthly cycle is present, there is ALWAYS the possibility of “escape ovulation”. Absence of a “period” does not indicate absence of risk.

The dose necessary to suppress monthly cycle can vary in each guy. NOTE: Too much testosterone converts to estrogen, so it’s not a matter of getting the highest dose, but rather finding the RIGHT dose for each person.

Plan B can be taken within 72 hours of unprotected sex or method failure to prevent pregnancy, but it’s never been tested on transmen. In the case of an unplanned pregnancy, T would need to be stopped and a trans-friendly healthcare provider consulted.

2) The OP stated the NSA partner had a vasectomy 10 years prior. Although his risk of pregnancy is low, he could be at risk for STIs. If he didn’t know the partner or had no proof the other man’s status, I would recommend testing for Gonorrhea and Chlamydia (in 1-2 weeks), and HIV and Syphilis (in 2-3 months).