Its happened once again?

once again i may be pregnant because this time the condom felled off but we don't know when it did SO is there a possibility that i could be pregnant? what is the likely hood i am? also he wats me to o on da pill or ave an in injection but i cant swallow pills and im scared of needles so should i carry on using condoms and tell him to stuff it Lol or dnt have no more because i cant keep going through it all and worrying at my age and his age about me getting pregnant?thanks