Could there be something wrong with my kitty?

My cat Amber got outside on the 12th while I was at work (she's an indoor cat, never been outside before). My boyfriend went for a walk at 5 AM yesterday and found her surrounded by 3 male cats. She's not fixed yet and hasn't had her shots yet. The appointment for her shots is in 2 weeks and then she was suppose to be fixed shortly afterwards. I can't believe she somehow made it outside before these appointments, ugh.

Since she's been home, she hasn't eaten or drank that much. She did a bit when she was brought inside but other than that, she's mostly been sleeping. She does stick pretty close to me though and she'll follow me around but again, she'll just pass out within a few minutes. I have 3 other cats, and she was really close with one of them. She's been trying to snuggle up to him again but all he does now is hiss at her (which he never did to her before). Whenever the other 2 cats try to get close to her and sniff her, she attacks them (which is something she hasn't done before).

I don't see any wounds on her other than a scab at the corner of her eye. She doesn't seem to have fleas or open wounds or sores or anything like that. I'm not sure if she mated with another cat but she was gone for a good 4 days so it's always a possibility. She is licking her no-no spot quite a bit.

What I'm wondering is:

Is it odd for her to be sleeping so much since she's been home?

Is it odd for her to be lashing out at my other kitties now?

Why is my one cat who was always so loving towards her now hissing at her?

Is it odd that she hasn't drank or eaten too much?

Why is she licking her no-no spot so much?

Could she be pregnant? Is it too early to tell?

I want to take her in to the Vet so badly to have her checked out but I don't have the money to do so until 2 weeks time (which is why that's the appointment made for her shots and etc). Is there anything I should be doing right now to see if she's 100% okay or? Am I worrying for nothing?

Most of your questions can be answered with one answer - she's most likely pregnant.  That and her outside adventure have resulted in her smelling different, which is what is causing the one cat to hiss at her.  He does not recognize these new smells (and may think she's an entirely new cat).  It would also ramp up her hormones and make her respond to the other two cats the way she has.

She's probably worn out by her adventures, which is why she's sleeping.  She may not be eating because she simply doesn't feel good.  She most likely wanted out in the first place because she was in heat.  That can make even the most docile cat a little crazy.

Even if you have to make payments arrangements or borrow the money, get her to the vet ASAP.  She has been exposed to outside things and may have worms or worse.  She especially needs her shots and I'd have her combo tested, just to be safe.

Thank you for caring for her...

I agree with Ondine; vet asap.  Think about this scenario meanwhile:  if pregnant (as I suspect she is), will you terminate the pregnancy (spaying with do that).

By "combo tested", Ondine, do you mean FIV/FELK?

Indeed, I would get her spay appointment moved up if at all possible. Yes, spaying at this stage will terminate any pregnancy that is likely developing, but this is better for her, AND for you, if she doesn't have kittens. :nod:

Two weeks of pregnancy is likely still within the safe range for pregnancy spays, but you may want to call your vet to make sure. The later you let it go, the more the pregnancy develops, and the less likely they will be able to safely spay her. And then you'll have kittens to take care of, and buy special food and medicine for, and find homes for, and get shots for, and spay and neuter...