If it were me (and I’ve been there!) I would return the crib and stroller and highchair.

You can co-sleep for free.
http://www.askdrsears.com/html/7/T071000.asp

No need for a stroller unless your baby gets very heavy and you have a bad back, then you can get one of Craigslist or freecycle. Buy a sling or Ergo or MeiTai (or fabric to make one) for a fraction of the cost of most strollers.
http://www.thebabywearer.com

A high chair isn’t necessary. If you delay solids until it is developmentally appropriate, then the baby can sit up anyway and use a simple booster to join the family at meal times.
I agree with skipping "baby foods" here’s why: http://news.independent.co.uk/uk/health_medical/article2067856.ece

Also check out the frugal living forum (and all the others!-) at http://www.mothering.com/discussions
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Buy an 8-pack of good paper towels. Doesn’t have to be the super expensive ones, but you don’t want the El-Cheapo ones either because they fall apart. I use Bounty, which are around $8 for an 8-pack at WalMart, which makes each roll around $1.

Put a big pot of water on the stove to boil (like you are making spaghetti.) Once it comes to a rolling boil, let it boil for 10 full minutes to be sure it is sterilized. You can also use distilled water, but then you have to pay for it, and I think the mixture gets more homogenous when the water is hot.

While the water is boiling, take a sharp, *STRAIGHT EDGED* knife and cut the rolls of paper towels in half. (You can do just one roll, or all eight, it doesn’t matter. They store fine.) Pull out the cardboard tubes and toss them. Put each "half roll" of paper towels in an empty wipes box, or a tupperware container that opens easily. Now gather a bottle of baby wash, a bottle of baby oil, and a tablespoon, and a large measuring cup.

Once the water has boiled for 10 minutes, turn it off. Take one cup of the hot water and add one tablespoon of baby wash and one tablespoon of baby oil, and stir well. Pour this cup of mixture over one "half roll" of the paper towels while it is standing up in the empty wipes box, then lay it on its side and close the box. Repeat this process for each "half roll" of paper towels.

When you are ready to use the baby wipes, just pull one out of the center of the roll like you would Clorox wipes or Wet Ones. This whole process take me about 15 minutes, including boiling the water, and my 4 year old *loves* to help! I throw one half roll in a large zip lock baggy and put it in the diaper bag as well, so I’m not stuck using commercial baby wipes in public, they kill my hands, they crack open and bleed!! Considering that each roll of paper towels cost you $1, that means each homemade box of wipes cost you 50 cents.

Remember that you can breast feed exclusively for the first six months, baby doesn’t need anything else during that time. No baby food, no formula, no juice, etc, so you won’t have to buy that stuff. I nursed both my daughters well into their second year, and exclusively for the first 6 months both times.

Congratulations on the new baby, I am sure everything will work out fine, so try not to sweat it! Just focus on enjoying the rest of your pregnancy!
References :
http://www.diapercakewalk.com

~Making your own wipes is very easy. Buy some flannel fabric (or buy some flannel receiving blankets at a garage sale), cut into 8×8" squares, serge the edges (if you have a serger or know someone who could lend you time on theirs) and use plain water or water with a little baby shampoo on them. Keep them in a tupperware container.

~Buy in-season produce. Shop at Farmer’s Markets. Grow some stuff.

~As many people have mentioned, make your own baby food. I got a stick blender (aka immersion blender), an electric vegetable steamer and icecube trays and that is all I’ve needed for all my baby food in the last 5 months. It’s SO easy and SO good for your baby!

~I have a store by me that buys used kids clothes and furniture. I trade in outgrown clothes and use the $ to buy new ones. I agree with someone who said you probably don’t need all that baby gear! Trade in your swing and stroller and make or buy an inexpensive baby sling or wrap!

~Don’t buy into American culture that says you NEED all this STUFF for your baby and child!! I think that’s one of the most important elements in living the simple, frugal lifestyle. You sound like you’re well on your way. Good for you!
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I would suggest buying used clothes on ebay.

I buy all of my son’s clothes on ebay, I have even got 24 pieces for $.99 plus like 5 bucks shipping. I know you could find patterns there too. Also check out your local library in the arts and crafts section. There’s usually a good selection of books showing how to make clothes, blankets, playmats, shopping cart seat things, even car seat covers. One pattern in particular shows how to make onesies and sleepers out of t-shirts – VERY simple, and I’ve made about a dozen for around two bucks (garage sales and rummage stores have TONS of t-shirts for CHEAP). There is also *ebay* for "t-shirt lots" and stuff like that. Also, you probably know how to save on food by buying staples like beans, potatoes, pasta, rice, etc. And then flavor them with boullions or even salt, Italian salad dressings… Slow cookers are AWESOME, you can make a stew that will last for a week, be Delicious, Healthy and inexpensive.

PS.

And don’t ever shop at Wal Mart. Wal Mart is for people who don’t have the options to do it themselves, or who don’t want to take the time, or who simply have that kind of extra money to just throw around for inflation and price-gouging.
References :
Vegan punk, do-it-myself-ing, breastfeeding, cloth-diapering, ebay-shopping, frugal penny-pinching low-income mom of a 6 month old.

I subscribe to Everyday Cheapskate. It’s an email newsletter, and it’s free. I also subscribe to the Ideal Bite newsletter, and many of their green living tips also help you save money, like hanging your laundry to dry instead of using the dryer. I love the smell of diapers dried outside! I forget the websites, and my 3 yo is bugging me, but you can google them.

Edit: Making your own wipes is awesome. I just cut up old receiving blankets with pinking shears and don’t even finish the edges. I rinse them off before a change and toss them into the diaper pail. They fray, but they’re just for wiping up poo.

Best wishes!
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Another thing is not using babyfood. You can start solid foods when your baby is a little older and then offer appropriate table foods.

Accepting hand-me-down clothing is very helpful too. If you don’t have friends or relatives with the right size clothes then maybe there is a church or charity close by that would donate to you.

If you are thinking about simple lifestyle then I would question the need for most of the baby items you listed too. Instead of a crib you can co-sleep. Instead of a swing and stroller you could get a baby sling carrier. Instead of a high chair your baby could sit on your lap.

Do you do other things to cut down in general too? You could grow vegetables, bake your own bread, look into one of those "cook for a day eat for a month" programs, good old fashioned coupon cutting, look into fuel assistance programs, etc.

Here is a "Frugal Living" resource:

http://frugalliving.about.com/od/frugalliving101/tp/Start_Frugal.htm

Congratulations and good luck!
References :
http://www.diaperfreebaby.org
http://members.aol.com/oamcloop/

Also, babies go through clothes and shoes so fast. I bought used things on Ebay for really cheap. Get books at the library, don’t buy them.
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