too work or not to work

this is my first pregnancy. since I was in highschool I always had a job. after highschool I went to community college full time and worked full time. after getting my associates I worked 70-80 hours a week . I saved $15,000 bought a brand new car, now I saved $20,000 for a down payment on a house . my boyfriend of 5 years, is in the process of trying to get in the Philadelphia police academy, once he's in he will be making $50,000 a year. then each year it's a little raise (plus over time for going to court) . I don't know how I'm going to juggling a baby and work . because a policer officer doesn't have a normal 9-5 sometimes they have 18 hour shifts. right now I have 3 part time jobs . 2 office jobs Monday through Friday 9:30 to 4 the I work at Applebee's on the weekends. I don't want to work full time because I want to raise my baby, not someone else. I'm having trouble figuring out finances because my bf is not a police officer yet and idk how much his checks will be weekly . can someone give me advice on how much it costs to have a house and a baby? my mom said she can watch the little one twice a week . which I can work those days at least and try to work around my bfs schedule but then I won't ever see him. stay at home moms please give me some advice !!!!