male ejaculation

Nicola • I`m 45 years old and I have a great husband. I have 3 girls 8yrs, nearly 6yrs and a 4year old. I’m pregnant with a boy 😁😁😁😁
When we have sex and after he's done I try and lie down for a awhile but there is always sperm left. It happens more if he's behind its just running down. I'm worried that there's not enough sperm getting through. How can I make sure that it stays a while 😀