Never have i ever

I don’t track my bbt. My periods are irregular, i know when I ovulate because i can smell everything! My boobs get sensitive and i have super clear vaginal discharge. But it would be nice to get a heads up. I’ve been thinking about using opk’s as a help. It would make me have a better idea of when I ovulate and track my cycles even better. But i am also on the edge of it because I don’t want to become so crazy about it and want to just relax. I’ve been wanting to start using preseed to see if it might help boost my chances. Should i try doing both? Preseed is around $20 and so are opk’s right? I don’t want to spend so much money especially if my cycles are irregular and don’t get my period every month. Does anyone have any tips on what i should do? Would i get the same results by tracking my bbt if i were to do opk’s? I’m exhausted of seeing BFN all the time..