Squirting !! Please help !?

This is really embarrassing 4 me, but when my bf tries 2 make me squirt by fingering me, ill go 2 push 2 squirt but ill either fart or my vagina will make a farting noise, its very embarrassing 4 me and i really wanna know how to make it stop. If i don't push i cant squirt, but if i push that happens.. I don't know what to do. Please help??