Sex positions for pregnant women's comfort and safety.,. topics and latest discussions relates to this video, which we found thorough the internet. have a uti, you should see your doctor or midwife as soon as sex during. About 75 percent of the time, urinary tract infections in women are triggered by sexual intercourse, says Nicolette Horbach, MD, associate clinical professor of. Some sexual positions are also more associated with UTIs, namely positions If you smoke, cut back or quit (which is best for you, anyway).