CM problem

Sydney
My husband and I are trying to get pregnant but my period is extremely irregular and I have little cervical mucus. I'm having a hard time trying to determine when I'm ovulating based on my cervical mucus. I know that it is super important to have a good amount of cervical mucus though. It has been weighing on my mind because we can't wait to get pregnant. 
This month we had sex around the time I think I was ovulating. It's been 8 days and I haven't had any implantation bleeding but my lower pelvic region has been feeling tight. I have also had cramps/minor pain in the same region. I can't test till next week though. I'm hoping I'm pregnant and that it isn't just in my head. Well just kinda needed to vent and ask for prayers! Thanks!