First Time Having Sex With My Boyfriend

Me and my boyfriend have been together for 6 months, I haven’t slept with any one in a year and I’ve only ever slept with one person because I lost it at the end of 2016... He’s more experienced than I am and I’m afraid he’ll judge me the first time we have sex. Is there any tips anybody could give me?

Edit: He told me he’s in love with me and he loves me for who I am... He knows I’ve only slept with one person and my first time wasn’t that enjoyable.