Estrogen rises: Trying to save up money? Keep this tidbit in mind: During the first few days of your Week 1, you tend to spend less cash due to low estrogen, which can make you a bit worried about how much extra money you have to spare. However, by the end of your Week 1, you could be splurging a whole lot. That’s because estrogen will have risen to a point where you’re more confident and optimistic about your financial picture, which can make it feel like you have more extra cash to spend than you really do. To stay on track, decide on an amount you can realistically spend: This way you won’t feel deprived, but you won’t end up spending more than you should. Find out more by downloading the Hormone Horoscope App.