Cut/punctured finger on rusty metal

I just cut my finger on rusty metal (it was the lid to my soap dispenser). It bled, so I washed it and cleaned it. I'm 21 weeks pregnant and had a Tdap vaccine a little less than two years ago. Should I be worried about tetanus? I'm nervous since I'm pregnant. It's too late in the day to call my doctor and I'm not sure this is something worth calling over. Thanks for the help!