Fiancé faces time and I'm late

Mindy

So my man is currently in jail, and my period is 16 days late. I took a test 2 weeks ago and it came back positive. Then I took 2 more, but those came back negative. I'm under a lot of stress right now with financial issues and a broken down car. We were both on meth, but have been clean for 3 weeks now, and I have no desire to go back to using. Is it too early to test? What are my odds of actually being pregnant? I'm scared.