Sorry to hear about the spotting. Brown spotting is old blood and many women spot during the first few weeks. I would try and get a ref to an OB though and have a consult to make sure all is ok and no fibroid etc.
I'm a little unclear as to timing, so I'm not sure whether you think this spotting is caused by a recent m/c, is actually AF, is something you can't diagnose, or is possibly implantation spotting indicating a pregnancy? You said you have had m/c's, and I am sorry for your losses regardless of whether they are recent or in the past.
I have had chronic spotting for over a decade, and it is just "normal" for me. (No doctor has ever been able to render a diagnosis -- they only suggest what it "might" be -- so I have decided it is due to a sensitive cervix caused or made worse by the laser and cryo surgeries I had for my pre-cancer (abnormal pap) cells in 2000.) So for me, spotting is just a "normal" way of life unfortunately. In fact, I had spotting for most of the week before I got my BFP - I thought I was "out" but I was actually pregnant!
However, unknown spotting that continues for any length of time should be checked out by an ob-gyn. In the years of trying to find the "true" cause of my spotting issues, the doctors discovered fibroids, cysts, and retained tissue following a m/c. If one of your m/c's was recent, you definitely need to get checked soon due to the spotting and pain because there could be retained tissue which can lead to an infection. Furthermore, all of the above diagnoses (fibroids, cysts, retained tissue) have spotting as a symptom. Sometimes, spotting can just be caused by a sensitive cervix. It doesn't necessarily mean anything is wrong, but it's always a good idea to get it checked ESPECIALLY if pain accompanies it.
Hang in there - it is frustrating above all else. I am sorry for your losses whether they were recent or distant because nothing ever fully heals that pain. I wish you the best.
OK, I completely misread your chart - since it started in November, I thought it stopped on 12/4 instead of 1/4 when you posted it. I couldn't figure out if you had stopped charting or if you had been diagnosed with a m/c where the spotting wouldn't stop, etc. I am SO SORRY I was so confused. The software won't let me edit or delete my prior response, so skip it and just read this one:
As for your pregnancy, your temps are still high, and the spotting is brown and not red. Those are great signs. Like I said, I had spotting (red and pink) for most of the week before my BFP. After that, the spotting (red blood and pink stain) kept on and on, and I had frequent spotting throughout the first trimester. Early on, it was heavy some days, and I had one day where there was a small clot. I also had strange cramps and pains. Having just had a m/c, I "knew" this was another one. Yet, everything turned out just fine (I'm over 20 weeks now).
The stuff I said about causes may still apply, so you might want to get checked. Like the pp said, cysts and fibroids can cause spotting (but they usually go away with pregnancy). The most important thing for you right now is your peace of mind -- you want to know the pregnancy is fine. If you can find a GP or ob-gyn to do a beta hCG test (and another 48 hours later), you'll know if your doubling time is good and you'll know everything is progressing smoothly. That is what my doctor suggested to me and I am glad I did it.
I don't really know much about low progesterone, but I know it can cause spotting during pregnancy. My doctor said if my temps stayed up, my progesterone was fine - so we never tested it. For me, it worked out fine. However, that might be an issue to consider?
I hope everything works out fine - keep thinking positive thoughts. Best wishes on a GREAT pregnancy!
@Michelle, Just curious if you charted and remember if your temps stayed while you were spotting during your earlier weeks in pregnancy?