Thanks for the query to hcm.
Gush was a part of fetus or simple bleeding clot ,it is very difficult to say anything merely according to history of patient .
As you mentioned that pregnancy
test is according to date and up to date .
2nd option is get in blood for hcg
test and there will be confirmation for pregnancy .Also get in ultrasound
for confirmation .
Physical examination will only confirm the pregnancy , so either wait for 7 days or get in blood test
Good luck for you 7 your baby.