With my first loss I never had my hcg checked at all... that was at 12 wks 2days. With our second loss they started checking hcg after I started bleeding (once at our scare...and then periodically after the actual loss). That loss was that 9wks 2days and my 'pregnant' hcg number was over 30,000. I think it took about 2-3 weeks to get completely back to 0. I couldn't stand to go back to my last appointment so I'm not sure. But a pg test about 4 weeks late came up BFN.
Hope this is helpful to you. I know that if I ever get pg again then I will probably insist on having my hcg monitored.
I don't know how often they test HCG levels after a miscarriage. My husband and I tried to escape to Hawaii after the m/c and I got really sick the tested my levels in hawaii and it was back to 0 this was 5 weeks after the m/c.
I didn't get tested for HCG levels after delivering, but I did take a test a week later at home. I have no idea why I did. It was negative however. Don't know if that helps any. Just thought that I would share my experience.
My dr never tested for hgc after my m/c and I was 16 wks. I don't even know if he tested when I first got pregnant. I have been thinking of taking a hpt to see if it would be negative, but I am not sure that I can do it! If it came back negative I would cry, and if it came back positive I would cry! I think I will wait until I am ready to test for other reasons.
I had weekly tests for HCG after my miscarriage at 16 weeks. However, I think that was because they did a D&C and were concerned that there was still retained "products of conception" since I was four months along and had an enlarged placenta. They don't really like to do D&C's after 12 weeks, but it wasn't happening naturally either and induction was my other option. About six weeks after, I was still testing positive with numbers in the 200s. At that point, they wanted to do a second D&C, but I really couldn't handle that emotionally. So, they gave me injections of methotrexate instead and that seemed to take care of it. A week later, my levels were back to zero. I know most people have their levels return to zero pretty quickly, though, it just didn't happen that way for me.
I'm not sure why they don't test for HCG after a normal birth. They give you the same instructions about watching for fever, not taking tub baths, etc. I think it's easier to see if the entire placenta has come out with a normal birth and so there is less concern. However, I do know a person who had to have a D&C after having a baby because she got an infection from part of the placenta that was not removed.