 [ Symptoms ] i have irregular period but could i be pregnant  iam 19 years old and had sexual intercourse this month on the 13th but i started to have a discharge and then lighr blood the day after until now could it be my period or can it be that there is a small possibility that my eggs are being fertilized i really dont know how that works out should i take a pregnancy test and when is it a good time and how many weeks should i wait to take it if i should do it  thank you [ Disease ] yes and no it depends on the type of test azo is a bright orange dye that discolors the urine on office dipstick type urine tests there are about a dozen different tests on those dipsticks that can be done but these must be read on a color scale fluorescent orange urine can interfere with the readings a microscopic test or urine culture would not be effected by discoloration