PLEASE help?

PLEASE help? My friend has been trying to conceive for a while now! Today she has taken two tests, the first one (blue) I really think I see a line but the second (pink) I cant see anything?? Please tell us what you think!? I really hope it is for her! I had been in the same shoes and I finally got my bfp in April, I really want us to to be pregnant together would be so lovely!! Any advice as to how long to wait? Or just keep testing? Thank you x