Ovulation

Tiffany

All of my ovulation tests that I took since the 14th of November are all very high positive LH surge. And I took a pregnancy test a day ago and came back with a very faint positive line. I just took one and now it came back negative?? Could I be pregnant and should I get an appointment for blood work cause my period isn't due until the 25th or the 26th help. This is the right picture I wanted