I use the Lifescan One Touch. I've also use Accuchek. I've had 3 different glucometers and never paid for any. If you ask the pharmacist, a lot of times they have rebate offers for the glucometers and lancer. Because I am now on Medicare, I get my supplies from Liberty at little or no cost. The hardware was free and I pay about $2 - $5 for a 90 day supply of strips.
I have also found my BS high after exercise. The way it was explained to me is that when you exercise - your body calls for fuel and the liver lets go with more sugar - therefore your BS counts go high.
The other thing is that ALL monitor systems meet the FDA standards if they are 20% accurate. So if your BS was 100 the monitoring system could measure it at 120 or 80 and still meet the standards. See this article: http://sixuntilme.com/blog2/2010/03/acc ... eters.html
I hope this helps. PM or email me if you have any other questions. My DD#1 and I have a lot of resources on line that we can share with you. I get most of my info from her as she checks everything out. She has had gestational diabetics with each of her 5 pregnancys and has been diagnosed with type 2 for the last 18 months. I was diagnosed in 1998.