 [ Symptoms ] i have or think i have hair loss when should i contact my doctor [ Disease ] hi f well it seems you have done the right thing by using condoms the only way the fail is dryness as long as you gf is a lucky lady and stays wet you should be ok and she is on the bc pill as well double protestion then so cant see why your so worried then if she miss is her period then is the time to worry but if she does miss her period you the do hpt and hope it does not turn blue hope this helps you good luck