SHY BUYING PREGNANCY TESTS

I've been buying pregnancy tests from a store branch near us. It has been 18 months and I feel really shy to walk up there and buy a bunch again. Of course, at times I would switch up different stores but this one is the most convenient because it is close to our home. I am considering buying them online. I do not want the saleslady/ cashier to pity me for buying every month and not getting a BFP. Or hopefully this month will be great and I will get my BFP. Hopefully, we will all get BFPs!