I have been charting on and off for 3 years, and both my pre and post-O temps are lower than average--at least for what I read and see in other charts.
Before ovulation, my temps are high 96's to very low 97's. I used to think it was because I took my temps pretty early (like 4 or 5 AM, as my DS was an early riser at the time), but now I am taking them closer to 6AM, and this last cycle my post-O temps are lowest ever. The highest was a 97.7. Today, at 6dpo, my temp was 97.6.
I am starting to worry about thyroid issues again. I say again, because when I was charting and taking my temps when TTC my DD 2 years ago, I was wondering about the low temps, delayed ovulations and erratic cycles, and since my mother did have a hypothyroid, I suspected it could be a factor. But after I received the typical thyroid testing, everything came back "perfect". Then I got pregnant and forgot about it. But just a few days ago I took out my thermometer again (because I am finding it harder to pinpoint O when not taking temps) and it all came back to me. Not to mention I have been feeling moe sluggish and depressed than usual the last few months -- but then again I have 2 young children, one of them high-spirited, that are going through sleep issues right now.
Here is my chart:http://www.fertilityfriend.com/home/1c1d14
There are a lot of temps missing, because I just started taking temps again this cycle. Most of my other charts are similar to this one, but by 6dpo my temps are usually much higher than this.
I did have 2 very healthy and uncomplicated pregnancies, no miscarriages. I have heard that thyroid problems (especially hypo) could cause complications. I also read somewhere (forgot where exactly) that blood tests may not be the best way to detect thyroid problems anyway, but taking your BBT is? Has anyone heard of that? Anyone have any info or experience on this?