Ok, I asked the Dr about this again today. Apparently anything over 20 more than your usual (either number) is bad news. So I started off 115/60 so anything over 135/80 is not good for me. However, she also said that over 140/x is also generally not good, mostly because I'm >35, overweight, and under a bit of lifestyle stress right now. So she wants me to come in once a fortnight to get it checked by the nurse in between antenatal appts.