After six weeks. a miscarriage depends upon the gestational age at the time of miscarriage. For any pregnancy, whether it ends at term, preterm, or in miscarriage.
My HCG didn't go down to zero (less than 5 - mine was 3) until 4 weeks after my miscarriage. As hard as it is to see that BFP or BFN, it's good to know where you stand. I'm still waiting for my first period since my miscarriage 6 weeks and 3 days ago.  Not true all the time. I had a miscarriage, and 2 weeks later ovulated and became pregnant. I read that your HCG levels have to go back down to 0 for you to even ovulate. The doctors thought I was pregnant due to remnants too, but had my blood taken and at 3 weeks pregnant, they were over 250. I am also having twins! You should not have had sex for about 3 weeks after the miscarriage, due to infection, so you may want to see your doctor for a check up. My pregnancy hormones were still there for about 2 and a half weeks... I went in on 2nd July (Friday) and had a positive pregnancy test on 16th July. I did not show a negative until Tuesday 20th July. The pregnancy hormone may still be showing one month later depending on how far into your pregnancy you were, but they normally say about 3 weeks. I would do a pregnancy test now, and see what it says. If it's positive, re-test in one week At that time, the cervix is closed and the incidence of infection of the uterus is less. After a miscarriage, the return to normal size is much shorter and therefore intercourse can be resumed in about 2-4 weeks (depending on the length of the pregnancy before miscarriage). The time it takes for a pregnancy test to become negative following a miscarriage depends upon the gestational age at the time of miscarriage. For any pregnancy, whether it ends at term, preterm, or in miscarriage, a urine pregnancy test should be negative after six weeks. If it is not, there are three concerns: After a miscarriage, the return to normal size is much shorter and therefore intercourse can be resumed in about 2-4 weeks (depending on the length of the pregnancy before miscarriage). I had a miscarriage the first week of February 2008. We were heartbroken. I didn't have a D&C-I passed tissue and bled for a week. On March 11th, I had my first period after my miscarriage. It was a typical cycle for me-lasting 5 days. I had a miscarriage the first week of February 2008. We were heartbroken. I didn&#39;t have a D&C-I passed tissue and bled for a week. On March 11th, I had my first period after my miscarriage. It was a typical cycle for me-lasting 5 days. We decided to try again right away. Last edited 22/04/2010 Hiya, I tested 2 weeks after my miscarriage and it was negative, but I was a bit further on than you (9+4). Unfortunately, until you have a scan, you will probably be none the wiser. Our hormones are pretty much all over the place around AF and when we are pregnant, so until proven otherwise, try your best to stay positive.  I miscarried at 7 weeks, but believe the pregnancy stopped developing before that. After the bleeding stopped (about 6 days) I took a test and it was negative.. but my hcg levels didn't get very high,only about 500 before they started going down. So it really depends how far a long you and how high your hcg levels are. I had a D&C almost 3 weeks ago after my loss. I had a beta done last Wednesday (2 weeks after D&C) and it was 144. I took a pregnancy test yesterday with FMU and it was only faintly positive (sensitivity proabably 25-50mIU/hCG). Has anyone experienced all of the symptoms of miscarriage but the pregnancy test was negative? I have already had one miscarriage about 4 years ago and my recent symptoms were almost identical. However, with the previous miscarriage (appx 10 weeks along) I had a positive test. This time I suspect it was a chemical pregnancy, but the test was negative. 
http://babyandbump.momtastic.com/miscarriage-support/509454-long-did-take-your-test-go-negative.html http://www.babycenter.com/400_how-long-after-a-miscarriage-does-it-take-for-your-hcg-level_965303_523.bc https://answers.yahoo.com/question/index?qid=20100727104106AAQruGz http://netwellness.org/healthtopics/pregnancy/qa5.cfm http://netwellness.org/healthtopics/pregnancy/qa5.cfm https://answers.yahoo.com/question/index?qid=20080411210209AAsFfmQ http://community.babycentre.co.uk/post/a4690605/how_long_will_a_pregnancy_test_stay_positive_after_an_early_miscarriage http://babyandbump.momtastic.com/miscarriage-support/1849565-long-after-miscarriage-hpt-show-negative.html http://www.mamapedia.com/article/early-miscarriage-symptoms-but-negative-pregnancy-test
how long after miscarriage until negative pregnancy test