Ttc is so stressful.... Is there anyways to help your period regulate itself some?

I think im just stressing to much about it but im really wanting to test but trying my best to wait as long as possible bc i only have one test... Af was supposed to come on 6/11 and im still patiently waiting hoping she doesnt show bc im pregnant finally.... Just wish this wasnt as stressful as it is!!!!😢 i also am tryingg not to get my hopes up bc i seem too alot only to be let down by negatives... And my periods arent always regular so im just waiting but gosh its so hard.... Any tips on getting your period regulating to make it a lil easier on conceiving/knowing when exactly i ovulate?