A condom is helpful both for preventing STDs and preventing pregnancy, but if it fails, you are still stuck. Get on the pill or get an IUD, and use the condom as well. Sorry, but if you are serious about not getting pregnant and protecting yourself from disease, this is the reality.
Hi there. well, there is no 'safe time'. We have a more fertile time but it is not fail proof that this is when we'll ovulate. So, I can't really recommend a safe time to have unprotected sex. good luck