I am 4 weeks pregnant and I have a 4cm cyst, at my ultrasound today (2nd one) they found a lot of free standing fluid which has my Dr concerned. I'm having intense pain occcasionaly and he said that as well as the fluid could be side effects from the cyst or signs of an ectopic pregnancy. That really has me scarred especially since my husband is out of town with work and I'm here by myself. Has anyone had an ectopic pregnancy that could give me any advice about what signs to look for?