What ever you do do not leave her and the baby alone it is extremly hard going through that and im still havin troubles dealin with it I understand your issue because I am 17 years old and 4 months pregnant however the dad is in jail for a while and he denied the baby he is also 18 so I am all by myself all you have to do is save up and you will be fine friends and family hopefully will get you some things at the baby shower and tell her to breast feed it helps loose baby weight and its a lot cheaper tell her to start savin up too you guys will be fine!!!

Theres so much more you're going to need for the baby other than just those 5 things you have listed.

Crib:
matress:
bedding set:
changing table/dresser:
changing pad and cover:
pack & play:
car seat/stroller combo:
highchair:
sling carrier:
swing
gate:
monitors:
nursery/bath care set:
misc baby proofing
baby wipes:
diapers:
powder
diaper rash cream:
lotion:
teething meds:
diaper bag:
infant tub
bottle starter kit:
breast pump:
formula:
bibs:
bowls/spoons:
jarred food:
onsies:
shirts/pants:
shoes:
socks:
hats:
jackets

theres so much more but you get an idea. Some of those things are optional of course but still. And just so you know diapers are going to cost you way most than $10-20 a month. Babies go through a lot of diapers and they're expensive. Same with formula. If your gf can she should try and breastfeed it's better for the baby and way cheaper. Good luck.

Well as far as the sleeping goes, I wanted the baby to sleep with me during the night. I know if I get a crib she would hardly ever use it, during the night i'd feel more comfortable if she slept with me anyway. Although I do want to invest in a play pen. As far as clothing goes I wanted to get a bunch of body suits since most of those come in packs. How many hats would I need? And I didn't want to get her any shoes until she started walking. And I do need to get a stroller and car seat.

i'm not going to leave her. I couldn't leave her and the baby. There my family.

It's just my opinion but sleeping with a baby is kind of dangerous. Theres always the chance that you could roll over on top of it or it could some how sufficate. Plus once the baby gets older it won't want to sleep by itself at all because it will be so used to sleeping with you. You could have a problem once it becomes a toddler and older.

well what if she slept in the play pen? Or is this dangerous as well?

I just got finished watching a show where the daddy killed the baby in his sleep on accident because he smothered her.

I hate cribs, but after watching that there's no way in hell i'll put that risk.

now, I could never do this, but thats because I roll around like crazy, I once rolled right over my partner. But for some people its a safe choice.

I don't want to buy a crib because she would hardly use it. Would her sleeping in the play pen be safe?

How do u know she would hardly ever use it? Would u rather sleep on a crib matress or a hard bumpy play pen? Diapers is like twenty bucks a week! Not month, and at first, its more than that b/c they pee more! And formula ten to twenty dollars a week? Is she going to just eat once or twice a week? Formula is around 200 a month! So try again! You really cant budget these things, cuz alot happens, what if shes sick? Baby medicine is through the f*#king roof! Insurance? It cost about 10 thousand bucks for me to have my daughter!*insurance paid, but do u have insurance?** if not be ready to go bankrupt!

Ur psychic.... How do you know she wont use her crib?
And I agree, a play pen, those are all hard and crappy to sleep on.

I do not recommend that baby to sleep with you.