So, my last normal period was on August 30, 2010.. I did have unprotected sex with my boyfriend a couple times but only for a minute each time before using condoms. On September 28, 2010 I got what I assumed was my period at the time. But after further consideration realized it was NOTHING like MY periods. It started very light pinkish then turned brown and lasted about 3 days and very tiny cramps, considering my menstrual cramps are normally terrible. Also my periods are never late, I know when they're coming and NEVER light.. So anyway, around the end of October I started getting this brown discharge for 2 days, then this morning, October 31, 2010 I went to potty and had a dark red spot on panties. Then for a minute I had what seemed like a period, red blood. But checked back later and it's dark brown discharge again.. No cramps or anything either.. I've taken a few urine tests and one blood test, all of which came up negative.. But I've had a lot of lower back pain, mood swings, tired, difficulty sleeping at night and definite hunger.. And the only slightest of cramps I've had have been weird ones, like a tugging feeling. I don't know what's going on with my body and it's severely frustrating. I do intend to try getting an annual exam this coming week to see if they see anything. Please help! Any Advice or anyone gone through the same thing before? :confused:

There are a number of reasons your period could be off. Good idea to have things checked out and another blood test might be in order as well.

Thanks. I've read that it could be random reasons. So I do understand that. I just found it so arbitrary and off putting. It seemed definitely like implantation bleeding. But now I'm bleeding anyway with no cramps. Thanks again though!