Cranberry juice for UTI

So I'm 6 weeks and now have a UTI and I'm a all natural kinda girl so I'm not taking thia huge pill a doctor recommend. I'm going to do the old cranberry juice home remedy! Have any of you done this pregnant? How much did you have to drink? I'm still earlu on in the infection as I have no burning sensation or any signs. Iv hurd it good for a pregnancy anyways so thoughts? Thanks ladies!