Late Period Someone Help Me :(

Last month (May) my period was 8 days late, but this past week ive felt a little nauseous and i get pains here and there which usually lead to my period but its atill late. I keep in mind ive been super stressed out over the past few days and i havent really slept well because of it. I had sex but according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">EVE</a> chart i wasn't ovulating.(I know its not 100% accurate and sometimes ovulating happens randomly) 

I dont know what to do :( 

Should i go to my doctor? I dont wanna waste money on a home test in case its too early to tell.  My boyfriend and I broke up and we're still close but i mean to top it all off he leaves in a week to the army for a really long time. And my parents aren't exactly supportive to young ones with children so im not exactly ready to ask them for help. 

I hope you guys read and comment :(