Hi Leesa,
Welcome to belly belly. The ttc journey can be a bit confusing sometimes and I agree with what Ryn said. Just a few extra things. Have you recently come of ocp? If so it can take a bit of time for your body to get back into its natural rythum. Vitex and Vit B are believed to help with regulating your cycle (I have had good personal results with both of these).
OPK's can get a bit expensive if you have a very irregular cycle. OPK's detect the LH surge that occurs just before you ovulate. I think a first stop would be to get your hormone levels checked as Ryn said. Charting is fantastic and until your cycle settles is possibly a better option than opk's, just for the cost factor really. There are some great internet suppliers of opk's and they are heaps cheaper than retail outlets and just if not more accurate.
Good luck with your journey and as Ryn said you will find lots of info and support from other women on the same journey in here.
Hugs to you