Hi mummy,
If you got the two lines equal in colour yesterday that indicates you will probably ovulate within 12-36 hours. (from then) It is not important that you didn't get a positive today - so save those tests! Once the surge is over you will not have any more positive tests until next cycle. It is possible you are ovulating today or tomorrow so happy bding!!!
Lots of love and baby blessings,
Deb