There are different types of pregnancy tests, with prices that vary. Just remember though blood tests, that a doctor can give, are more accurate. Just know that if you are pregnant, you will be spending quite a bit of money. This is just a factor to consider since you had a problem spending $20.00 on a box of pregnancy tests. You said there were 6 of them in there, well, for $20.00 that is a good deal, since some women have to take more than just one to get an accurate reading. From the signs you described above, it sounds like you may be, so you can get cheap tests for under $10.00, but the name brand ones, you will spend between $12-$20, this includes just 2 most of the time.