5 days late - negative test

Jessica

So I’m 30 next month so we’re in the not trying but not preventing stage cause we want to fall pregnant but also it would be pretty hard to hide at my own 30th.. anyway today I’m 5 days late (day 36 of cycle) and I took a test at 1pm.. negative. Now I’m trying to decide when should I take the next one? Should I wait another day, 2 days? A week? I don’t have any other symptoms except I was very light headed at the gym last night.. any suggestions?