Late Ovulation=Miscarriage

I am new to Glow! My DH and I have been trying to conceive since Dec of 2016. I thought I was pregnant due to a very late period which never happens in Dec. Didn't get my period until 15 days after I was due. I had a 45 day cycle from Nov-Jan. That was odd but we decided to try again after I got off of my period when it finally showed in Jan. We have been BDing all of Jan and up to today since I'm not sure when I O. I've had a ton of Ewcm starting 2/13-today so my guess is I'm either Oing or O'd but it's CD 35 today. I've heard late O can cause miscarriage. Did anyone else experience this? Should I wait for either BFP/period before consulating a doctor? Not sure what to do. My period was technically due 2/10 no BFPs yet. But like I said I'm pretty sure I'm just now Oing so I'm thinking I'm just now entering my TWW.