Plan B during high ovulation?

You don't say what your question is, nor when this happened. I will answer what I assume you want to know. Let me know if it was something else.

The only emergency contraceptive pill proven can prevent pregnancy during the 24 hours around ovulation (& including the hours of ovulation itself), is Ella (Ulipristal Acetate). You can see that on the Manufacturer's website.

Plan B (Levonorgestrel) might help, but it has not been proven.

I do not advise taking Ella now that you've used Plan B already, as they do not know if the 2 drugs, used together, could cancel each other out, leaving you with potentially no help. Further research is needed.

You could have an IUD fitted by a doctor, within 5 days/120 hours of the unprotected sex, if you're still within that time. That can prevent implantation, & stay in place as longer term contraception.

That would seem your only other option at this point.