Very stressed and VERY confused . .?

Went to my doctor today because I have a terrible cold and told them there is a possibility that I could be pregnant(they completely ignored that I said that & proceeded to give me medicine not safe for pregnancy) The 2nd line seems very FAINT to me so 1st picture is just minutes after the test and the 2nd is the same test about 30-45 mins after the test, HELP! (They also tested urine at the doctors but said I was negative)