Am I pregnant? What do I do?

Okay so I am new here. I just have a couple questions.

I have been more sexually active through Dec-Feb. In January I started my period the 23rd and got off the 29th. We then had sex the 6th and 7th of Feb which was the day before and day of my Ovulation Day. And all of February I never had a period. I took a cheap 1$ test a few days ago and it came back negative or had a faint like. But I am now a week and 1 day late on my period. I don't know what to do.