caverjen,

I wouldn't worry about it. Definitely could have been the time of day you were tested, whether you were hydrated, and even the breastfeeding could have affected it some.

Good to hear you were able to conceive and breastfeed at such a low BF. Some people can't if it drops below 20%. You are definitely one of the lucky ones

Everyone here has given good advice, but I'd like to add one more thing, if you don't mind. You say you eat protein, it's too early in the morning for me to calculate the grams based on your post. Kids had me up last night but the rule of thumb usually is .9g of protein multiplied by your body weight. so for you that would be .9 x 125.5 which is roughly 113g of protein per day. Now that that is the minimum intake of protein you should be consuming.

My protein intake is .9 x 120 which is 108g of protein per day, but on lifting days I consume close to 150g of protein. I get the extra protein from protein shakes.

Hope I was a little helpful