This should not be so depressing.

I feel pregnant. I am 12 DPO and have been cramping for over a week. I've also thrown up a few times and am battling some serious nausea. I bought tests from Amazon, which were supposed to be sensitive strips, but instead they sent me what look like dollarstore brand tests. Not sure if it's picking up any hcg!!! AF is due Saturday the 6th. Shouldn't a positive be showing up at this point???