Last week (Monday or Tuesday) I noticed some pink discharge when I wiped. I thought maybe AF was coming soon so I put on a panty liner. Later that night while I was in bed I started having some uncomfortable cramps..thought that meant that AF was starting. I went to the restroom to check and nothing. I wiped and there was just a little more pink discharge. This lasted for 3 or 4 days. Could that have been implantation bleeding? My other symptoms are dull low back pain, frequent headaches which is not normal even when AF is coming, bloating and cramps. Do you ladies think my symptoms are worth testing early or should I wait until AF is late? I am really in no hurry..