Has anyone conceived after one time

So my periods have been weird these last three months as far as length. I went from 7 days including spotting to now 3. I’ve been tracking with opks and trying to do things right but of course no luck. I had a brief period April 21-23. On the 24 a spot on the 25th a spot. I ended up bd on the 25th. I tracked my ovulation and my lines were faint I bd again on this past Saturday the 30th. I woke up Sunday to a positive which is cycle day 11 and once I put everything in the app it updated ovulation to today. I got up today and tested it was positive cycle day 12. My boobs hurt so bad and my Back is killing me but no cm. Not sure if I’ll be able to bd. Do you guys think I still have a chance if today is truly ovulation day and I bd two days ago. Been trying for 8 months now 😔 just want my baby.