If she is more than 6 hours late then worry; otherwise it was not actually late.

so i shouldint buy the ec pill? we are safe?

it was the first week of the pill she missed also

IF she was more than 6 hours late then she had 1 missed pill. You said she took it the next day?

It sounds like she missed her Wednesday pill and so she took two on Thursday. Then on Friday she was on time, and today she's not late yet. As long as she takes her pill by 2am then she is FINE.

You do not need to buy the morning after pill (emergency contraception) right now.

You two should be fine since the day she was actually late she took two. Next time, let her know that as soon as she remembers she should take the pill she missed, and then go and take her pill for that day at the regular time just in case.

Have her set an alarm on her phone to help her remember. I understand that she's babysitting today and will be a couple hours late and that's fine, but it would have helped on Wednesday when she forgot altogether.

She followed the rules correctly and should be fine.

You don't really have to worry unless you miss two in a week.