About 6 weeks ago I had a uti that I couldn't shake off for 3 weeks so I have only been symptom free for about 3 weeks. Last night me and my boyfriendhad sex for the first time since very early in my pregnancy and I'm just worried that it may cause an infection to come back and I'm scared as last time I got to my wits end with it! After 3 weeks symptom free should there be any risk of the infection returning?xx