Dear D.,
It appears that you are a very busy mom and that your hormones are adjusting accordingly. Stress plays games in many parts of your body, including glands.
Many women athletes skip many periods because of the amount of stress which they place on their body.
I guess that you could use a basal thermometer and be able to read your hormonal highs and lows a little better without having to get acid indigestion. Basal thermometers are available in drug stores and have directions on how to read them. I found them most helpful and very natural.