hey there growmie, your soil is contaminated, when you get it in , you kinda have to bring it outside in the sun to get rid of the bugs and eggs in it , but nothing you can really do about seeds except sterilise the soil in a pressure cooker lol, just pull them out, play with them if you will, but there are very very few scenarios where high grade seeds get sown accidently in store bought soil. fingers crossed though 🚀