Early pregnancy possibly detected on fertility monitor?

After my miscarriage at 8 weeks we started trying again. I didn't know when I would ovulate but my doctor told me it could be 2 to 4 weeks. 4 weeks after the miscarriage I started having cramps like ovulation and the stringy discharge (sorry TMI). I just knew I was ovulating then. I took an OPK test strip and got a bold 2 lines. This went on for a couple of days. I asked a friend who works at my doctors office if this meant I was ovulating and she said if the OPK stayed positive for more than 3 days that I was possibly pregnant. They did a blood test and I was. I never had a period in between. To answer your question, I think that you are pregnant because of the high readings on the fertility monitor. And yes, if you are experiencing any symptoms this early your HCG levels are much higher and that is a good thing. Sorry my answer is so long but I do hope you are pregnant. Good Luck!