This might sound horrid but worth a go....my DH recently had a SA done. He produced and submitted sample at 8.30am and it was stuck in an incubator then tested at 2.30pm in the afternoon. This month I DTD around midnight and stayed in bed after and inserted the softcup in the morning to avoid it all coming out (nice!) coz I figured that my private area must be a bit like an incubator and the sperm might still be good to go. I removed at later that day so hoping it extended the chances....