4th Generation ELISA is concluded as 100% accurate after 42 days post exposure. 38 days 4th generation is 98% but again, those 2% is for those who are hep c antiviral medication, radiation or cheo therapy, serious immune issues.
note it: 3rd generation window period - 12 week; 4th generation or combo window period - 4 weeks; NAT windows period - 28 days.
Statistically you are negative but, just test at 43rd day for your deep breath and relax. if i was in your situation, i will continue with my life very normal at this point.