Pregnant?

Okay so I got my period this month but last Friday I took a pregnancy test and i got two lines. So I thought to myself because I am so excited, okay so I told my BF and he couldn't believe it. This will be our third if I am. I am so confused because I have been feeling weird and so i don't want to get my hopes up. I read online that if you get a positive you should wait a week to take another one I want to make sure before I go to the doctor to really confirm. Do you think I would be considered a high risk pregnancy because of my age, I'm 34 and I looked at my medical records from my 2 pregnancies before and everything looked fine. I'm so excited and nervous because I really want this to happen. Is it also okay to have sex before I take another test. Please help.