thanks for asking the query.
Dont worry ,relax ,its normal to have a cyst
in the ovary at the start of ur pregnancy
,called corpus lueteal cyst ,it supports pregnancy by maintaing high level of progesteron .it regress as later the placenta takes overthe role of hormon production and supplyig the nutrients to the growing baby.
crmps may be due to ovulation cramps . relax ,dont worry ,it will be seen regressed in the next scan at 13-14 wks .
take care enjoy ur pregnancy ,be in contact with ur gynecologist for ur cramps.