When does it end...

Miscarried my baby on Tuesday morning after taking misoprostol. How long will this bleeding last? I was almost 9 weeks. TMI- the blood also has that smell like when you're on your period and you left your pad on too long (don't wanna say fishy but it's not fresh smelling either). Cramping is better. Also, what hcg tests can I buy off Amazon that are reliable? Is it reliable to test until I get a negative? My doctor will also be following up with a Sono and hcg #s until it's down to 5. Ugh. This sucks y'all.