How long after a miscarriage should a pregnancy test come up negative?

Ok, about 2 weeks ago I have a miscarriage and when I went to the doctor they took no audition, and just said it sounded similar to a miscarriage. And was instructed to rob a pregnancy test weekly. I took my first one tonight and it still come up pregnant. Is this normal? How long should it lift to come up negative. Please aid.. Thank you!
Answers:

How does one properly douche??

So wait the doctor said it sounded close to you had a miscarriage, they didnt know for sure? Get an ultrasound to label sure. I believe it takes around 2 weeks for a pregnancy interview to come up negative after a miscarriage. My sister within law get pregnant again 4 weeks after she had a miscarriage, so you enjoy to be able to ovulate again around the 2 or 3 week engrave... i hope ive helped

When you enjoy sex for the first time.?

normally about a month..mete out u still have the pregnacy hormone is your body..it take a while for it to leave ur system