Help! CD 58

Ashleigh • Engaged to my best friend and soldier. We have a 5 year old son, and currently ttc our second ❤️
My last period was from May 28-June 1. Light flow. I took quite a few pregnancy tests within the past two weeks and they've all came back negative. Usually my SO and I will have sex for me to get my period going and so far that hasn't worked. And this was a constant sex every night, for the past week and a half. Anyone know what else I can do on my own to help it start? Or know what I should do before consulting a doctor?