Pregnancy and testosterone

SJ • 34 TTC first child. SO already has 1 very awesome little.
Has anyone gotten pregnant while their SO has been taking testosterone  injections? I've read online that testoterone can kill sperm, but I thought maybe I got pregnant in Sept. But wasn't sure since I never tested, and AF showed 4 days late. So, it is just a feeling and I was showing symptoms, but they could've been in my head.