Still holding on to the positives.

When I was very young I was told that I would never get pregnant because of an auto immune disease I developed very young. I got pregnant in April and miscarried on June 3rd. I took over 10 tests just so I could see the positive lines. I've thrown everything away...the babies r us books, the miscarriage aftercare pamphlet, the calendar with the pregnancy countdown. I've taken down the list of baby names and I've taken time to heal. But I can't throw away the tests. Sometimes I take them out of the medicine cabinet just to make sure it really happened. That I was pregnant, just to give me hope that it will happen again. My current obgyn says that there is a good chance that I will get pregnant again and that letting go of the loss is the best thing to do. I dont feel like I can let go of that pregnancy and just forget about It. My significant other things I should throw away the tests. What do you guys think. Is holding onto the tests unhealthy?