potty potty potty

so, we are in the throes of potty-training week. a week in which abby wears underwear except for naptime and overnight. it's not going great. i'm not sure if she's just not ready yet, or if she's just being stubborn. she doesn't tell me when she has to go, so it ends up with me taking her every half-hour or so. but, even if she's just gone, she'll still have an accident. she had 3 this morning within like an hour. i don't understand. i'm tempted to give up for this week and try again in a month or so, but i've already invested a lot of time in this and i don't want to "let her off the hook." decisions, decisions.