Unsure

 
My cycle didn't show up,is there a possiblity ,that there may be others reasons ...why a female cycle wouldn't show?
My cycle normal comes..... early or on time ,sometimes twice a month and now it's late.
It's like have an open wound ,that has not properly healed ,yet.
I don't know ...what to think....
should I be ...taking a pregnancy test or just  wait for a week to go by  and then test.
 Anyone:      What do you think...I should do?
What are other possibilities?
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