Hi. i took plan b 2 months ago. had an irregular period last month and again this month. either bleed one or two days then nothing the next then some spotting then nothing etc. u took a pregnancy test and it was negative. is this normal?

Tests are accurate: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A test gives a reliable result 3 weeks after sex (3 weeks after when conception might have been). If done sooner, a negative result may be due to testing too early such as less than 2 weeks after conception. If continued symptoms, one's Ob-Gyn doctor can help.