Concerned mucus plug at 6 weeks ?

Me and bf did the deed last night and it was pretty rough not to be tmi this is my 5th pregnancy I just had another baby last year via my first c section and I got a huge chunk of what looks like mucus plug is this normal? You would think after 4 kids I would know but it’s never happened also I know it regenerates but I had two kids before 37 weeks so just a bit concerned also no none of us have any infections I just got labs for any utis or bv everything was fine