What happens next?

My boyfriend and I have been having unprotected for about 6 months, we're not saying we're trying to conceive or putting any pressure or stress on it as I have pcos and I've always been worried i won't get pregnant or will struggle, but we have had the chat and both agree that it's what we want. So we're 6 months down the line I've lost a lot of weight coz the doctor when I got told about the pcos Sadi that that helps and I've had no missed periods and no positive tests so from the looks of it I was right thinking we will struggle. (this was highlighted when I've found out I'm gonna be an auntie after being caught on their first attempt). I still don't want to add pressure to it just yet as it might happen naturally but was wondering if anyone can advise me on the next step? If I go to the doctors what will happen? What do they do? Is there any drugs they give you? Or any herbal ones? T.i.a