Switching positions and...

Hales
ladies, I get so embarrassed when my boyfriend & I switch positions & my vagina makes the queef sound due to air & wetness, I get so embarrassed & don't even wanna continue sex my boyfriend acts like It's no big deal but, I feel he's like what the fuck turn off but, he still finishes. Opinions on how to prevent that noise or, If It ever has happened to you.