Am I pregnant?

Laura • I have been married to my husband for two years
Two days ago, I have noticed some spotting, but no proper periods I used to have: major belly pains that would normaly result in pain killer taking, and loads and loads of blood. My periods suppose to start in 4 days, so this is early. Pregnancy test was negative but maybe its too early tell? Has anyone had the same symptoms and ended being pregnant? Thank you!