Tobramycin while pregnant

Patient: Hi, I’m 7 weeks pregnant and a respiratory therpaist. Tonight, I had to give a patient inhaled tobramycin. I didn’t remember at the time that it was harmful. While pulling the med out, some got on my hand which I washed off after placing med in nebulizer. I was also in the room long enough to breathe it in for just a minute while turning the treatment on and then again when I turned the treatment off. Is this enough exposure to cause harm?! thanks!