Steroids & pregnancy

Okay folks, this mama is freaking out & I need to know if I should be or not so I hope y’all can help me. My baby’s father & I have been split up for about 2 months now. Well a couple weeks ago, we met up to have sex bc these pregnancy sex cravings are dire lol & so anyways, he came inside me of course bc I’m already pregnant & I find out today that he’s been on injectable steroids for about a month now. Apparently they’re pretty strong ones but I’ve never actually seen the name of them, so who knows. Could that have caused any harm to my baby or would something like that not even reach the baby & leave it unharmed? I’m so scared that it could have hurt her but everyone says I’m fine. But I still worry, naturally.