stupid question

its posted anonymously vus im quite embarrassed but i lost my virginity to my husband 3 years ago so i font really know the ins and out. what i will say is im not embarrasser that i waited til 29 to do the deed im proud. the thig that has me worried is when we make love as soon as he cums it doesnt stay in me it turns into a fountain. is this normal and what can i do about it