I need some insight please...

Br

According to my last period, I’m 6w1d. I have had slight cramping mainly on my right side since a few days before my period was suppose to start. The cramps got worse. Thursday night I went to the ER to get checked out. They did blood work. My HCG levels were almost 7000. They did an ultrasound. Everything is fine except I have a corpus luteum cyst (not sure I spelt that correctly) on my right ovary. The doctor said those are normal during pregnancy. I asked him if that could be why I’m cramping and he couldn’t really tell me. I’m lying in bed and my right side cramps all day. Sometimes the pain is way more noticeable. Is this normal? Could the cramps be from the cyst? Any advice is appreciated. Thank you.