It's probably best to take them throughout your whole pregnancy. And maybe if your breastfeeding just in case you aren't getting the needed vitamins.
It's not a good idea to stop taking them at all.. I stopped during my first trimester because I was getting so sick with them.. but all they are is extra vitamins..I'd take them as long as you can!
U should definitely keep taking them throughout ur entire pregnancy and it is recommended that u keep taking them if u are going to breastfeed many doctors give u a yr prescription for prenatals or at least mines does
Take them don't stop it will help while pregnant and after the baby remeber baby took things away from your body so you fumet them back with prenatals