Can't stop thinking about food?

Pregnancy is commonly associated with food cravings, but other periods of hormonal fluctuations can also affect a woman's appetite and thoughts about food. — Positive Parenting

Why can’t some women seem to stop thinking about food?

A desire for chocolate before their period, a sudden urge for something sweet after a stressful day, or constantly thinking about what to eat next, may seem like ordinary cravings.