Check Walmart or Sam's Club online, or CVS .com to check all stores near you. They are sold out in a lot of places. Walmart and Sam's had them $10 cheaper than CVS. They come in a kit of 2 tests. Nasal swab, 1 inch into your nostril, both nostrils swabbed. There is a liquid dropper you drop 6 drops into the hole in the test then slide the swab into the cardboard and over the hole, then shut and seal the cardboard and wait 15 min. Ours came up positive within 10 seconds when we had symptoms early on (we had pcr's a day later for my child and 2 days later for me, and they came back 24-48 hours later as positive as well). I took another a week after my first positive at-home test and it was super faint positive, I could barely see it -- like Jenn. This is why it makes me wonder about her story. I feel like it's possible she was infected and didn't test till the end of it.
I highly recommend everyone get the at-home tests. They work! Yes, they can show false NEGATIVES if you are testing too early, but the positives are pretty much spot on. Our pediatrician offices uses the same tests prior to a pcr and they told me they are accurate. I wish our government was providing these to people to test and offering them for cheap. You know they probably take a dollar to make and they are charging $24 a box of 2 at CVS. We could all be testing before big events, for school, for travel. Yes, we may miss some early positives, but generally it would be a huge help.