hubby and I are ttc and I'm experiencing some abnormal periods the last 2 or 3 cycles.... I'm typically irregular but besides these last 3 I've been regular since December.... how do I tell if I have pcos without the dr?

I don't have insurance atm. been unemployed for over a year and just returned to work....

what tests does anyone recommend getting when trying to conceive? if I'm going to the Dr. I want to get what I can done all at once so I don't have to pay for multiple visits.