Ok so my sister in law and brother has been trying for a baby for over a year now probably almost 2 years now and has yet to happen because my bro has a low sperm count and only has 1 testicle. But my sister in law all of a sudden asked me about how I was when I got pregnant I said my symptoms was spotting, peeing literally every 3mins it kept me awake all night, and very sore sore breast, and cramping. Well she said she's been peeing a lot then she was throwing up her food right when she eats them, but then she took a test it came out negative. Then 2 days after her period came. But she said it only shows the blood when she pees and wipes. But don't have any on her pad. And then she took another pregnancy test it came out negative again. So now she's confuse her period has always been regular and it was never like that she said it is something new to her. Hope someone can help answer of why and what thank you

She will have to wait to see what happens when her next period is due.

She took the first test a day or so after she was due? And the second one less than a week later? HPT test are less than 50% accurate during the first week after one's due date. So she is taking the tests too soon. She should wait another week.