Burning sensation when urinating after making love with my husband because i was on top and we did not have intercourse for 3 weeks?

Possible UTI: Your symptoms could be due to a urinary tract infection (UTI) which is commonly precipitated by sexual activity regardless of position(s). Sexually-related irritation would be another possibility but symptoms would be short-lived and improving. If symptoms worsen or persist >48 hrs, would recommend contacting your md for a urine test and/or short-course antibiotic treatment.