6 weeks - faint lines...advise

I just found out I'm pregnant, I should be around 6 weeks. My fiance doesn't know yet because I dont know if this baby is sticking because all the tests I'm taken have all been faint lines (I took one this morning)idk when I shoukd tell him. I'm scared and Idk what to do. I also want to make an appointment once he knows (i want to tell him sometime this week) but if he's not allowed in with me and they tell me I'm having a miscarriage I will be a wreck. This is my first pregnancy so I'm new to all this. I've read that alot of people get super positives by this point. This picture is the from the pack 3 days. Today's test is the last one. Help :(