Need help

So my AF use to be exact day every month no matter how many days were in a month. In Jan I moved and it went to crap. I missed my AF and then also in Feb. End of march beg of April I finally got it as well as in may but they were 36 days apart. My husband and I are trying to conceive. I'm trying to track my ovulation by bbt and cervical mucus. Is there anything else that I could do to help besides the opk strips. Has anyone ordered anything on amazon vitamin wise that helped?