Had sex 4|12|18 & ovulated 4|15|18... cycle shouldve been 4|25|18 but i spotted brown , light pink , and a little blood , even tiny clots... pregnancy test both home and doctors came negative , its 5|28 & no cycle just spotting , negative preg test?

Tests are accurate: Today's home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, vaginal spotting, or medications. A test gives a reliable result 3 weeks after sex (or when conception might have happened), 1 week after missing a period, or 1 week after starting a "weird" period. If done sooner, a negative result may be due to testing too early.