2 Answers

 People make mistakes.  Just keep trying.  You will get the hang of it.

Making up the Missed Days
People who are (not chronically) ill and travelers can break their fast during Ramadan, but must make up the missed days. If travelers make the intention to fast during the night, they can still break their fast during the day. If they have already made the intention to fast while resident but then decided to travel during the day, most scholars maintain that they must fast.

Those who have broken their fast because of harsh circumstances also must make up the missed days. The scholars agree that menstruating women, women with post-childbirth bleeding, and pregnant and breast-feeding women who fear that fasting might harm them or the baby, must make up the missed days.>>>http://www.thewaytotruth.org/pillars/sawm.html#making