what is the chance??

Currently a week late , boobs hurt cramps are there but don't hurt and I'm using the bathroom every hour it's annoying.. but I did get nauseous and I did throw up never late especially with a month that has 31 days I did take a test twice but it was the week af was supposed to show up but got negative went to the hospital I thought they took my blood for a test but I was sick so it was for that and the urine was for the pregnant test which also came out negative testing tomorrow with FMU but question is ? Is there chance I could be ??