6 weeks

I saw the baby yesterday 5 weeks 4 days on ultrasound with a heartbeat. However I am still experiencing the same symptoms I was yesterday that concerned me in the first place. Both ovaries are in severe pain, ( pulling type ripping pain) Lower back pain really badly and pain down both my legs. The ultrasound confirmed everything was fine and my first HCG yesterday was 8,300. I never experienced this with my first child so I’m really just looking for advice on what to do. If this is normal how do I make the pain a bit easier? I have no breast pain but bad nausea and vomiting. If baby is fine why is this happening :(