pls help me out

Ok so im ready to lose my virginity but when he tried to put it in I couldn't get wet at all and a couldn't relax the muscles down there and idk wht to do bc over the ohone i get wet af but in person its like impossible. And we cant get any lube. And ik we cant use petroleum jelly with condoms but idk wht im supposed to do i felt bad bc i told him i was ready and that i wanted tl have sex with him Can someone help me plz.