Could this be possible miscarriage?

Basically I have had two previous miscarriages I should be about 8 weeks 5 days. I have had really bad sickness and about 3/4 days ago my sickness completely went away, but I still had sore hard boobs that felt full. Now the sickness is coming back in waves but it’s no where near as bad as it was and it only lasts for about 5-10min. My boobs are still sore but they aren’t hard or feel full! I have been having a lot of pain in my stomach since last night, but no bleeding? Could this be a miscarriage? Has anyone experienced anything similar?