I had unprotected sex with a lady on 5th of april,3weeks later i started having hiv symptoms,my lymph nodes in my groin started swelling and painful also.i was also fatigued for some days and i had fever and sore throat.i am so scared.tried getting to the lady,she said she is clean,that she had a test two month ago.so on 16th of may she had a test done and it came out negative,my question is...is she ok to do a test on the 42day...