Just keep checking?

I’ve been having unprotected sex with my special honey and I’m not saying it as a bad thing. We are both okay with it and so on. Anyway, the main reason is to have little ones. I’m nine days late for my period going on to ten. I don’t have period symptoms, I usually get them even when it is late. And when it’s late it’s late for about two days and then bloody hell is loose. I took a pregnancy test. The test was a triple test so it has the line, digital and yes or no. I took two and both came back negative. I wanted to save the last one (I suppose I didn’t want to see it come back negative) but how long do you guys think I should wait till I take the next one? Should I just flat out go to the doctor?