Does this mean the test is positive?

I had unprotected sex during my ovulation cycle. My period is due in 6 days. Today I took a test and within the time frame that the test says there was a very faint positive line, but it was only seen when I would tilt the test up. Whenever I laid it flat down the line was no longer there, or I just couldn’t see it because the lighting in my bathroom isn’t the greatest.

About 4 hours later I looked at the test again and there was a clear positive sign (two clear lines). The second line is pink, it’s not grey.

Does this mean the test is positive? Has this happened to anyone else?