1993 Pontiac Grand Am Smells/Feels like it's running rich a

Additionally it doesn't start!

For the past week or so with the cold Chicago weather, my car has had some issues trying to start. It'd take more cranks than usual, but it'd eventually turn over and start running. From here, it always would idle roughly - to where I had to give it a bit of gas or else it would stall out on me.

At first, since the check oil light came on, I had the oil replaced and that seemed to help a little bit, but it didn't fix anything. I still have problems with it stalling/starting, and now it won't even start at all!

I can smell fuel/exhaust while idling at times, like at a stop light for instance, but that typically goes away with forward motion once I get going again. I know that fuel pumps for my car tend to be a bit weak, from what I've heard, and that it's a common problem for them to go bad. But I don't know the symptoms of such a thing and I can't afford to throw a lot of money into this car at the moment _just_ to get it diagnosed!

Anyways, I guess I'm just looking for a bit of an opinion on what problems could create this situation, any advice is greatly appreciated since I know that it's hard to diagnose cars without looking at them in person.

Thanks again,
Zack