make sure you use a strainer to keep the big hunks of blood out.
geonagual Reviewed by geonagual on . My sister is on her period!! WILL IT MATTER?? Ok pee test tommorow.. im COUNTING on my sister to pass this test!! If she is on her period can it mess with the test in any ways?? It aint a big ole lab test either.. Its just a simple piss, Flip, And wait cup.. Can it mess with the test? Rating: 5