The wonder weeks app seems to go by EDD, as opposed to the actual date of birth. What has your experience been like - did your weeks happen according to due date or birth date? And how close to accurate we're they- right on the predicted days, or a few days early or late?

LO has been fussy the last few days, and her sleep last night was crap, but she's only 3 weeks old (the app says the first leap is in about two days). Just wondering what your experiences were!