How long should I wait to take a test? My period is late but I don't want to worry. It's 4 days late now.

Caylah🌻☀️ • |21| 🌹 |Married| 🌻 |Penelope•7.19.18| 🌷
I don't want to stress too much about it nor spend more money than I need to. I don't think I am bc I have been late before. Not usually this late though. I normally ALWAYS have cramps the week before if not the day before. The only signs I have had is tender nipples; not really the whole boob. 

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