confused...

So my husband and I are ttc..this week I am ovulating..i have had an aching lower tummy all week and sore breasts. I was sick yesterday after breakfast which was weird brought back memories of being pregnant before. I have taken an ovulation test as glow says I'm due to ovulate 7th, yesterday was a strong line but not as strong as the control line. today my tummy is aching and hurting more..ive taken a test today and the line is hardly there does this mean I've missed my peak ovulation time. first time tracking my ovulation using a kit. any advice or tips please muchly appreciated.