Confused 😐

Karla • A happy Wife, with a wonderful husband❤️
Yesterday I took a PT and I swear that I see a very very faint line. I retest today with FMU and was NEGATIVE. I'm on CD 17 and I have a lot of creamy white CM and pain like if I'm going to have my period. But then I took a OPK and have a faint like. This is so confusing.  
Off the pill: 18/ January 
AF: 24/28
EWCM: 2 February, and spotting. Just that day. 
Since February 5 I have been with the white and creamy CM.