Hi, I also have endo. When I was pregnant I spotted on and off the whole time. I was a nervous wreck! I also had cramping with the spotting.I had a misscarriage the year before so my doctor had to keep a close eye on me.The most inportant thing is to do what your doctor tells you. Mine even put me on bed rest a couple of times till my bleeding stopped. It wasn't much fun but it was worth it.Best of luck!!