Does anyone know why Grace was taking birth control pills at the end of the season finale?

My guess is that she wants to have sex with Jack, অথবা it is just in case she decides she is ready to have sex with him. It doesnt hurt to be prepared.

Well, since birth control pills take a few days to regulate hormones, she may have been taking them in anticipation of them having sex.

well first her mom gave them to her because she found condums in the bathroom. then she told her mom that she wasn't having sex. but she wanted to keep them anyway. then she was taking them because she starded having sex with that guy i forgot who it was.

shes taking birth control pills because she is gonna lose her virginity in the সেকেন্ড season

maby well i think so

her mom thought she was having sex