A home pregnancy test checks and detects the level of beta hcg in the urine which will be present if a pregnancy exists. A urinary tract infection thus per se will not affect the result of the test, however it may mimic or cause some vaginal bleeding. I would advice you to get a repeat test done and also wait for a coupke more days as it may be normal for a period to be about 5 days delayed. All the best. I hope this helps.
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