No, what Teak said. HIV rashes don't occur in the pattern you describe, they are maculopapular in nature. You don't have to worry about HIV post 12 weeks negative test unless you are immunocompromised. Practically, chemotherapy, disease-modifying antirheumatic drugs, immunosuppressive drugs after organ transplants, glucocorticoids are the factors that compromises one's immune condition. Now, if you think, any of the above mentioned don't apply to you, you don't have to worry about late sero-conversion.
You're in the clear, move on.
You are conclusively HIV negative.