These seem to be general interest questions, and not exam questions, so I will answer them as such.
1. This pediatric program is talked a lot about in the acupuncture community: https://www.jingshenpediatrics.com/ Please check with your local college and association in the province where you plan to work to find out if they require you to have any special training for peds. Generally, we are safe to start treating peds right away.
2. If you’d like to learn about prescribing herbs in complicated cases, I recommend you join Jimmy’s group: https://www.elotus.org/bio/jimmy-chang Generally, the dosing for pregnancy is not different. The only thing Jimmy has ever recommended in regards to pregnancy (and breastfeeding) is to not use any Blood-moving herbs.
Again, I gave you two solid suggestions to learn more, which I highly recommend to do if you are uncertain at all.