Helo doctor. My last period is on 27/7/2023. And on the 4/7/2023 I had unprotected sex with my lover. But he ejaculate outside. And on 21/8/2023 night and today the 22/8/2023 I have dark brown discharge. My backbone is paining. My lower abdomen is paining n I got pimples. My breast is tender. It is a sign of pregnancy or a period. please help me.

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