I took mine to work at 37 weeks and photocopied the notes from all of my key appointments. I'd also had a couple of traces where they'd monitored his heartbeat and so I copied those printouts too. The midwife had marked on them where the activity coincided with kicking which made them more interesting.
I took photos of all the pages, just in case! I'm glad I did, as three years later I'm pregnant again and can hardly remember anything from first time around due to all the sleepless nights and baby brain. It helped me remember things like how often I had appointments, blood type and what I had blood tests for, NT results, etc. It has been interesting to compare them to this time.
It is worth getting a copy of your full notes after delivery. You can request this using the data protection act. My midwife used my notes from last time to understand what happened in my last delivery. Also a colleague at work had a couple of c-sections and later in life needed some form of gynae surgery and they wouldn't do it laproscopically because they didn't have her notes from her c-sections. So that's what made me keen to get and keep a copy of all my notes.
I agree with Apples you should get the copies done after birth. I didn't, went back for my sign off with the consultant at the hospital as I'd ended up in surgery and he had no idea what had happened as my notes had gone walkabout before anyone put them on the system. I'm about to go for a consultant appointment for my next one and I won't know what is relevant to tell them/if I've remembered correctly and she'll have no notes to look at.
You can request your notes by making a subject access request under data protection. Usually to the hospital where you gave birth but you may have to contact the trust itself. I'm in Scotland so not sure if it's a little different elsewhere. I requested mine from the hospital. There can be a charge, particularly if your notes aren't recent.
Thank you. I've just been having a Google based on that link (helped me find the right things to search for) and found a form to fill out for the trust - seems worth a go for the price of a stamp (to begin with)!