Is it worth it to retest?

I took a test on what I was expecting to be my period day on 4/17 if I ovulated on 4/3. The test was negative. But I think I may have ovulated on 4/6, so would testing on 4/17 have been too early? I still havent gotten my period and been getting lots of headaches, bloating and gas...a lot of dull cramping and tenderness on the right side of my abdomen where I think I felt ovulation from...should I take another test?? My husband has also said he's had like four dreams about me being pregnant over the past few weeks!