You took the home pregnancy
test too early on. It looks like you have a mild intestinal infection and your symptoms are not specific only to pregnancy. You can take the pregnancy test again now and if needed,you can get a blood test
and a trans-vaginal sonogram and see your gynecologist for further support. It is also possible that you could be having slight hormonal
imbalance that may have caused the abnormal bleeding. Hope this helps. Good luck.