Anyone not getting their period? After TTC

Amie • 28, married since 2014 and trying for my second child. Have one tall healthy 5 year old boy.
When my so and I started TTC I then had a normal period and then after trying again I now am missing my period now on cycle88 and last month I swear I had ovulation spotting and we TTC that day and still negative pregnancy tests. I don't even know at this point if an ovulation kit would help if I'm not having a period.