I've only had one injection and have been using the pull out method. I had a regular cycle for 2 months but didn't get one for this month. I've als?

Depo? Usually the depo shot is reliable against pregnancy soon after receiving it. Often you don't have cycles on the medication. Do a pregnancy test to make sure and get your depo shot every 12 weeks. All the best. Remember it does not protect you against a STI.