I'm pregnant and alittle worried might have strep b uti again. going to go to walk in. i know they don't supply wipes for clean catch. can i use a regular alcohol wipe to do a clean catch sample?

Doesn't matter: You could do that, but most likely the clinic in fact can supply wipes. Anyway, alcohol wiping isn't really necessary for clean catch urine. A damp cloth or toilet paper is just as good; the important thing is midstream, i.e. to avoid urine contacting labia. But why walk-in? Contact your Ob's office and let them advise on diagnosis and treatment.