I need some advice

Me and my partner have been together 4 years, we have a 1 year old toddler together but in the past he has cheated on me with escorts and chatted up other girls. He did not start doing this until 2 years in to our relationship, it was when we started arguing and the relationship was going down hill. Even when I fell pregnant he still kept meeting escorts for fun and I did not find this out until this year and it started happening 1-1/2 ago. He has stopped now and has not cheated on me for months but I cannot trust him and part of me feels he does not love me because if he did he would not of done all those things. He keep telling me he loves me and our son and only wants us and wants to make things work and prove things to me but I my family hate him and can