I'm 5w6d pregnant after FET and have had sore breasts for almost the duration of this cycle. Also had some nausea on and off and been really tired. My breasts aren't feeling as sore and im worried. I know that symptoms come and go, but if I could hear some reassuring stories about disappearing symptoms and still a successful first ultrasound, that's be great! Im also on PIO injections. Ultrasound isn't until the 28th... Thanks everyone!