I called my midwife straight away. They'll likely schedule to see you around 8 weeks to check your dates and talk about tests and go over medical history, etc. At least here they do because if you want the NT scan it needs to be done around 12 weeks and they need to make sure they do it at the right time for the results to be accurate.
I was 36 for my first and am 39 this time, so the care has been the same for me both times since I was 'over 35'.