3 weeks post d&c. I've tested once a week to make sure hcg is dwindling down. At 2 week mark it looked rather negative. I could still see a faint line cause I was looking for one. However week 3's test has a very evident line. Does hcg fluctuate like that? We have been baby dancing since day 12 follow d&c. Just wondering if you can get pregnant with hcg still in your system? I wouldn't even know when I ovulated. My dr told us we could try after bleeding stopped and that's what we did. Any advice would be appreciated. I plan to test again in two days. From there maybe get a blood test.