So confused

KLS • 💙💙Baby Boy due 8.17.18💙 R.C.S Born 8.4.18💙
Ok so I'm on cd10 my cervix is soft high and open and I think I have ewcm (we did bd today but that was 12hrs ago).But I keep getting light opks. Are the test wrong or can you just experience the signs early? Also I had O pains on the left side on cd6-8.