Should it bother me ?

I’m pregnant with my partners baby and on Facebook he’s tagged in so many photos of people he’s slept with(he’s slept with 6 people) .. but theres hundreds of photos. When I go onto his profile it’s all I see so that’s all others will see... I’ve brought it up with him before because it bothers me but there still there ?? Should I just leave them as it was his past or be bothered because I’m having his baby in a few months and all I get is his past thrown in my face on social media :/?