Help me 😕😕😕

Ladies sorry if this is too much information but me and my husband have just done the deed and he finished. I went to the toliet so he could come out and heard a lot come out and made a sound like a clunk hitting the water I'm right in saying it was my husband not me like my mucus plug??? I'm nearly 24 weeks. I just worried and my baby seems to be really low and kicking!!!