Please advise/help me!

Hubby & I BD on the first day of my fertile window. We will BD again today - 3 days before glows predicted ovulation (although i sometimes ovulate a day earlier than glow says), but we can’t BD any other day as he is away from 10pm tonight right up until the day after predicted ovulation. I am starting to get crampy and emotional so know ovulation is close, so FX that it happens earlier! My question is, having only BD twice during my FW, and not the day before or on the day of O, how are my chances of getting pregnant? Has anyone had a BFP from something similar? I’m so desperate 😭