One arm is bigger than the other from lifting weights, what do I do now?

I have been strength training for the last couple of months, and I just noticed that my right forearm is considerably bigger than the left. I don’t know that anyone else would necessarily notice unless I pointed it out, but I don’t want them to be uneven, and I also don’t want it to get worse. My upper arms look the same, but my forearms are lopsided. The right side is also more defined than the left.
I do the same exercises on both sides of my body, so how do I fix this? Should I do less on the right until they level out? Will it work itself out on its own? I’ve never had this happen before.

I feel like a teenage boy cliche, but I’m a grown woman.