Congratulations and welcome to the UK
Not sure there is a standard way in the UK
My GP gave m the name and number for my Community midwife I rang and contacted her and she rang me back and booked a booking appointment to see her when I was about 11 weeks. before hand I had to pick up a form to fill in about covering basic details and where I wanted the birth.. along with a pot to pee in and bring to appointment (nice) and several leaflets about the scans I would be offered, the various blood tests they do and the local hospitals and the services they offer for birth. This tends to be very different depending on where you live, locally if you are suitable they are very pro home birth, some areas have midwife lead units which are open to women without complications, (sometimes called domino deliveries) any complications and you will be sent to the local midwifery unit. Then there is deliveries in a maternity hospital with doctors around, most deliveries are still covered totally by midwives but specialist doctors are there if need be.
Care is carried out in different ways too, many women will be just under midwifery care, some areas you are under midwife and GP but if there is the possibility of complications you are referred for shared care which means you also see a consultant team. I could have chosen which one I had the choice of 3 hospitals and 9 consultants but that will depend on where you live. I chose the hospital but was not worried which consultant I was referred to. But if you get the information about which hospitals are in your area I am sure if you want to research the consultants you could express a preference and would probably get it.
In the UK you carry your pregnancy notes around with you mine are in a yellow book. Looking at the front of mine there are basically 2 paths one if you have had a baby before one if you have not. Here in Bristol if you have previously had a baby you have
10-12 weeks booking appointment with Midwife paperwork and bloods BP weight discus where you wan to deliver any referrals including then dating scan which comes within that time too.
15-16 weeks midwife appointment health check blood test results, listen to babies heart any questions.
19-22 weeks what they call the abnormality scan (such a lovely name )
28 weeks midwife appointment health check blood test results, listen to babies heart any questions.
34 weeks midwife appointment health check blood test results, listen to babies heart any questions.
36 Weeks midwife appointment health check blood test results, listen to babies heart any questions.
38 weeks midwife appointment health check blood test results, listen to babies heart any questions.
41 weeks If you have not delivered by then midwife appointment health check blood test results, listen to babies heart any questions. referral and discussion about induction.
If you are referred to a consultant which can happen at any time during your pregnancy if they believe there is a problem they add appointments and scans I get an extra growth scan at 30 weeks to check where my fibroids are and see the consultant again then.