Need advice!!!

So my husband lied to me back in February and ending going to a bar with a female we have been trying to make it work due to me being pregnant and us having 2 kids but its not working he seems to not care what i think about having her on social media contact with her he recently just got an iphone and she has one as well. They work together 🙃 he doesnt want me tracking him and wont give me straight answer he says im insecure and i have trust issues so need some advice