Help anyone?

Yanira • Trying for baby #4 👶🍼
Ok I'm 12 days late on cycle day 47 got blood work on wendsday came back at 2mIU/ml so bfn should I continue to bd or is there no use of even trying until af takes her sweet time I have been irregular since I can remember but never over cycle 35 so being at 47 has me worried...
Thanks