I used a uti test strip this morning and it came back dark purple but I have no symptoms of a uti at all I have some itching but Im pretty sure it’s a yeast infection I bought some Monistat which I will use tonight I remember back when I was around 19 weeks I used a uti test strip as well and it also came back dark purple and no symptoms of a uti at all is it possible that being pregnant can give u a false result for a uti test strip