Hi!! I have a question. I am never regular on my period. Every other month or sometimes every two months. I'm not trying to get pregnant so I'm not keeping track of it. I'm not on the pill. My husband always wears a rubber. But on the 13th of this month he didn't and we honestly didn't think to much of it. On the 21st I started spotting it was a pinkish, brown color. Not normal, but I thought I was just starting my period. It lasted 3 days, then stopped. Then when I wiped it was a brownish pink color. My period when I get it is always heavy and NEVER like this. I'm cramping a little, but not like I would normally. Could this be implantation bleeding?

Please help me...haha Thanks