Hi I had an ectopic pregnancy 4 months ago and was treated with MTX I had a weird fluttering sensation like a muscle spasm at the site of the ectopic. I'm not 7 days past ovulation this cycle and have the same fluttering feeling again, same side of my abdomen. It could be Fallopian tube spasming to work the egg down? It could be implantation 'fluttering' although implantation feels like a hot needle in my uterus for me normally... So what do you think is causing the strong muscle spasms that last 5-10 seconds and come in batches? I'm taking magnesium so it's not a general deficiency muscle spasm. It's also not gas because it stays in one site over a long period of time. It's much stronger than a gas movement. Please let me know what you think this could be. Thank you. JH