2 Plan Bs in 2 days? Or fine

I'm on the ring and have been on it for a month and a half. I got my period 12 days ago. Yesterday I had protected sex, and then the last round we did it without condom but I took plan b right after. In the morning we did it for like 30 sec without a condom and we stopped because we are scared of pregnancy. I'm wondering if I'm fine since I already took plan b and I'm on the ring but I don't want to risk it more than I already did. Should I take another plan b tomorrow?