Help could I be pregnant?

Please help. I had an MC a month ago. About three weeks ago started trying again, a couple of times by accident and then properly from last Monday. I have PCOS and never have periods, not even when I fell pregnant after 1 1/2 years of trying. I thought I would of had a period by now with the fresh female hormones but nothing so far. I have had two positive ovulation tests though. No luck with pregnant tests. I seem to have been obsessed and took them all. Does it sound like I could be pregnant? I've asked for help before with no reply but I'm desperate. Any help would be appreciated. TIA