Once I'm pregnant (fingers crossed it's soon), do I.......?

Go straight to the doctors? What will he check for etc while I'm there? What will I need to do? (Sorry, just curious and also a little excited, as just got married and just started trying). Also, my hubby brought an article home about a thing called GBS (Group B Strep), it has worried me a little as it seems like a large proportion of women carry it, and that the nhs aren't to stringent on it. It says it can come and go, so to make sure can I request testing regularly through my pregnancy and will it be monitored. Seems like the outcome is pretty bad for the baby if it is monitored and it's worrying that it isn't offered routinely on the NHS. Can someone give me some advice on all this. Many thanks.