Peripheral Vision Loss

I'm 32w1d today and when I woke up this morning I had no sight in my peripherals (mostly couldn't see anything above). I've rested for about an hour now and it's better but my sight still feels off...it's like I can see but I can't focus on something unless it's directly in front of me if that makes sense. I've had ophthalmic migraines in the past but this isn't the same experience...I have already called the on-call physician and I'm waiting to hear a response from there. In the meantime, has anyone had similar experiences? I've also tested negative for gestational diabetes and my blood pressure has always been fine (just went to a dr appt last Thursday). What else could it be?