Irregular Mensural cycle. Were normal.

I have missed my period. My last cycle was 44 days ago. I have irregular cycles ranging between 30-35 days with an average of 32 days roughly. Now as me and my husband has been willing to start our family now, last month was our first attempt but yesterday I tested via the kit 2 times ( one evening and one early morning test) , the result came negative both times. Since the last 15 days I have been experiencing symptoms like mild lower abdominal cramps, breast pain and frequent urination along with leg cramps. I have also been struggling with period pain in the last 6 months,( I have a 4 day cycle and my menarche was at 11 years of age). Period pains were always there, but now they go for all 4 days of my cycle and I have to be dependent on anti- spasmodics generally for the first 2 days at least. I got a general routine blood test done this year in January where all the parameters were normal.