Sooo... I haven't had a period for the last two months and I figured it was because I had my thyroid removed not too long ago. But I am sexually active, and it did freak me out. I took three tests that came up negative, but still... I just got a new job and yesterday was my first day. I started to spot at work, but it was brown instead of red, as if it was old blood. Anybody have experience with this?