Can urinalysis detect if a woman had just sex?

If the vaginal fluid contaminates the urine, sperm may be seen in urine which would indicate sexual intercourse. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV and Covid vaccines. Wish you good health!