Weird late period...I think

Heather
So I spent the last almost 2 weeks thinking that I may be pregnant because my period was 10 days late. Then on the 11th day I had some very light spotting once in the morning and then did not bleed at all the rest of the day. The next day I did not bleed either. Then the day after that (which was yesterday) I bleed very lightly in random bits throughout the day. This morning so far I had just a very tiny amount of blood on the toilet paper when I wiped. I should also note that the blood has been very light in color, pink almost. I have taken 5 pregnancy tests over the last couple weeks and all have been negative. Could this weird, random, light bleeding be my period?? I have always had very heavy periods and they have never been nearly this late. Has anyone else ever had something like this happen to them??