Congratulations on your pregnancy and welcome. I'm glad to hear that you were working with your doctor to get as healthy as possible before becoming pregnant
As for blood pressure, during pregnancy there is usually a drop in mom's BP during the first half with a gradual rise starting somewhere around the third trimester. This normal rise *could* be what you are seeing (disclaimer: I am not a physician). Keep in mind that doctors don't always "trust" one higher BP value taken in their office, since it could be due to "white coat hypertension" (if you are stressed when you go see them, your BP could be temporarily higher). That doesn't mean they should ignore it- and your doctor seems very cautious, since she is testing your urine/blood and keeping on top of your BPs. Daily BP readings from home can help sort out whether or not your BP is reaching levels where your medication, if you are still taking it, might need to be tweaked. In addition, daily BP readings will help to identify if you start to have what are called "labile" BP readings (BPs that vary widely over the course of the day). Labile BPs are common in women who go on to develop preeclampsia. Your doctor should be able to tell you what would be considered a normal vs abnormal "swing" in your BPs, given your unique situation.
I also suffer from migraines a few times a year. I have always been able to control them with over-the-counter medication, but since the medicine contains significant aspirin and caffeine, I could not take it during my pregnancy. During the first half of my pregnancy, I did not get any migraines. And then at about 26 weeks, I developed one, complete with visual aura, numbness, tingling, sensitivity to sound and light, and immense pain. And as usual, tylenol did not even touch the pain. But this is normal for me! So, given that my BP was not elevated and there was no protein in my urine, it was *just* a migraine! Migraines are common in pregnancy given that your hormones undergo such drastic changes from normal (and sometimes, pregnancy actually gives migraine sufferers temporary relief).
In the weeks after my first migraine, I did develop a couple more that followed the same path. Eventually, I was diagnosed with PE at 29 weeks and delivered my daughter at 30 weeks. So, the migraines may have been the first indication that something was not right. Please keep a close eye on your headaches, report them to your doctor, and make sure that she continues to follow you closely. If you continue to get headaches and they are somehow abnormal for you, or you just think something is not quite right, call your doctor. As we all know, PE can be very quick to develop! Good Luck and we will be looking for an update!
Diana, happily married since 2007.
Miscarriage at 10 weeks (June 2009).
DD at 30+0 weeks weighing 2lbs 9oz (October 2010) due to PE and IUGR. Today, a happy and healthy toddler.