I wish I had some good advice for you on this. I'm on one of the pricier plans, BistroMD, and I love it. So, I doubt that'll be the best fit for you, just because of the moneysaving you're looking to do. BistroMD is $195/wk. for seven days plus snacks; $145/wk. for five days with no snacks. I started on the 7 (+snacks) plan first and now am on 5 (no snacks). I'm losing a pound a week, on average (and that's with quite a few "slips" and "off-plan" eating and drinking and no exercise whatsoever -- sheesh, it's like I don't really want this to work, eh?? Ah, that's for another post).
Anyway!
Packages shipped by BistroMD are appx. 60 pounds of food and packaging on the seven day w/ snacks plan and around 40 pounds of food and packaging on the five day w/o snacks plan. Most of the BistroMD food is frozen.
This is how our freezer looked after the first shipment arrived:
Ha!
I know Noodlebean will come answer your questions. She, as you know, has that awesome blog with so much information about the various plans, reviews of the food, pros and cons for overall programs, etc. I'm sure she'll be able to answer your question about price too.
When I did my comparison shopping (and I looked into all of the home delivery plans before deciding on BistroMD), I found NutriSystem to be the cheapest (but a plan I couldn't choose, due to the wheat gluten content of nearly 95% of their foods -- a personal food sensitivity of mine), and then Diet To Go was the next cheapest after that. Then came PurFoods and Jenny Craig and BistroMD in about that order, if I recall correctly.
Anyway, I think they're *all* in the neighborhood of $15 to $25 per day once you add in the cost of shipping, and the cheaper plans tend to need you to buy "supplemental" foods like yogurt or salads or milk or cheese or veggie sticks or whatever. What I liked about choosing BistroMD was that there is NO extra anything to buy, when you're on the 7 day with snacks plan. Some of the other 7 day with snacks plans still require a little extra shopping, and that -- in my opinion -- went against the whole idea of choosing a home delivery service for my diet needs.
So, I know that's not entirely helpful since you're probably not looking to do the whole BistroMD thing (and there is a $50 referral savings -- like $50 for your first week, plus $50 for the person who refers you; and then your fifth week and 12th week are each 50% off, etc.), but I figured I'd put it out there, in case it gave some perspective on the matter, when Noodlebean and other awesome 3FC posters come by to share theirs.
Good luck and congrats on your pregnancy! Very exciting!