Tips on keeping BP down?

My blood pressure has been great throughout my entire pregnancy, but I noticed that my resting numbers at home are slowly creeping up (highest was 128/80).. I’m 33 weeks. I had mild pre eclampsia with my last two pregnancies and was really hoping for an uneventful third and last pregnancy. I’m a stay at home mom this time around, so I rest as much as I can. Any tips on keeping those numbers down, or just keeping my mind relaxed? I tend to get pretty anxious towards the end.