Need to vent

I had a few conversations with this girl in my apartments an she tell me that her an her boyfriend gets into frequently meaning he stabs her bust holes in the walls an more. They been together 3 years so now she says she think she's pregnant but afraid to take a pregnancy test ok so a couple of days ago she found out he been talking back to his ex because the ex sent her screenshots of their messages. So she said that she gets on Facebook an the girl who sent her the screenshots people is talking about her and saying that her vagina has bumps inside and she use men so I'm like ok so I tell her that goes to show you that you need to leave him alone an go get checked out she keeps saying she scared I said ok well I don't know what else to tell you. But for some reason when she comes around me an it be HOT AS HELL outside I instantly get Goosebumps like I'm cold. So I told her that she needs to just focus on her an the kids an not no man. So what I'm really trying to say is why is it that the people who do right an care about others (Me) an wanting to have a baby I cant get pregnant I'm not sure if I'm not having enough sex or what due to my husband&I; work schedule or what. My daughter is 4she will be starting school this year an back in 2012 we had our first miscarriage at 25 weeks then we got pregnant 6months later so now I'm not sure what's going on. But all I know is I will always trust god in keep him first in everything that I do.