I am wondering about this as well. I thought I was too but af came. It was as heavy as usual but the duration was much shorter (something like 3 days instead of 6).
i had the same thing. I was 6 days late then when af finally came it lasted only 3 days instead of the normal 7-8. It was heavy all three days with cramps on the first day. I have done a couple of preg tests but they were all bfn. I am now on my second day waiting for my next af. if nothing by saturday i will test again. please let me know what happens to you guys.
It is possible to have a period while pregnant. I have a friend who got one throughout a lot of her pregnancy. Also, see the info I just posted at "what I was told about IB and periods while pregnant" which might help. I'll keep my fingers crossed for all of you.