If your periods have always been irregular it probably wouldn't hurt to get a check up by your GP. My periods were really irregular. My cycles would be up to 120 days plus. So yeah it made it hard to fall pg. I was diagnosed with polycystic ovaries. But as you can see from my signature we have been blessed with a gorgeous DD and another bundle on the way so it is possible darl. Because of your irregular cycles I would be inclined to get a check up just in case. Lets you know where you are starting from.