there is still a chance you could have conceived, don't forget there are millions of sperm ejaculated inside you and only a small minority come back out, the rest are already on their way to hopefully fertilise the egg, good luck i hope you get your BFP!!
Since you are ttc (trying to conceive) it would be best if you could lay on your back for about 20-30 minutes after you bd. That way you give the little swimmers all the time they need to get to their destination!!! It is not uncommon at all to have some of the swimmers leak out after standing but to ensure yourself a better chance of them meeting the egg it would be best if you could avoid standing immediately after.
Just like Gillian said they produce millions of swimmers each time, so chances are a good bit of them stayed.
Good luck and I hope you get your BFP in the next 2 weeks.
..I believe these two ladies have answered this question, I would like to wish you loads of luck on your bd journey!!
Only a little bit of sperm is needed to get you pregnant. So all the other sperm that came down your legs, what's inside you is enough for you to conceive =) That was one of my questions on my pregnancy with my son that I asked my doctor. Good luck and best wishes!