I am a soon to be 39 years old woman and I have a daughter of 18 years old.I am writing to you concerning a strange phenomenon I have been observing in my tummy.Yesterday morning I woke up with a strange bump on my right side of ovaries.When I put my hand there it was as when you are at your earlier days of pregnancy. After a will that thing almost move back inside my belly so that I could not feel it anymore. As far as I remember I have felt that thing a few times over the past year but in my mind I thought it was just an organ moving in my tummy. A few times I experienced stabbing like pains going from that side of my ovaries to my anal area giving me difficulties not only to stand or sit,but also to walk.My period came yesterday morning what could that be?thanks in advance for answering me.