HELP!!! HELP!!! Irregular period!!!

Me and my Husband been trying to have a baby... BUT nothing. We've been trying for a year already and so far I haven't get pregnant. I do have a problem, I'm a very irregular with my period. I can have my period between 2 to 5 months. That means that I can have my period 2 to 3 times a year, that's it. My question is, is there anyone that has the same problem has me and still got pregnant??

Today I started spotting, and for the past 3 days my lower back it's been hurting, that means my period is here, but for the past 4 months I been feeling movements and palpitations by my ovaries. Is this normal??

Can somebody help me Please!!