Can we buy a house if we only make $3000 a month?

Me and my husband want to buy a home in NJ or in TX. We have a income of only 3 grand a month because I am in school for RN and will be for the next 2 - 3 years. We really want to buy a home now because we have 3 boys 6, 4, and 2. My credit is bad and his is O.K . Will anyone give a homeloan for at least $180,000.
Update: I am also a Vet. I can get a VA loan. And now we are paying $1000 a month for rent.
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