I Need To Know If I Should Go To The

I need to know if I should go to the emergency room. I have a doctor's appointment in 12 days to be checked out. But my sugar keeps dropping. I ate at 10 am and a 2 my sugar was at 89. My husband is a diabetic so I used his blood tester. I have be testing my sugar for about a week now and I cant keep it up on my own