Sameera--I'd definitely call your doc. You never can be too careful. If you do have a bug, you don't want the infection to get out of hand either....trust me....the docs are SO used to pg mommas calling all the time. With twins, it comes with the territory. You should never feel "ashamed" of calling with a silly question. You went through A LOT to get these babies.
I had to giggle at your first question...

When you asked, "How did you manage?".....it would take a book to get through all that! LOL. From what I've learned, it really depends on you and what kind of situation YOU are in. For instance, I had lots of family around. So, for the first two weeks, I had someone staying overnight with us for many of those days. My mom, MIL, sister, SIL, etc. My DH owns his own business, so he couldn't take a lot of time off and he needed his sleep....but I couldn't do the nights on my own....After those first two weeks, then we just worked out a schedule with family and friends...someone came over nearly every week day just to lend a hand. Since I was bfing (but also had to supplement), feeding time was always a challenge, the helper really jumped in with the bottles, etc. On the weekends, it was just me and DH. I admit, it was nice, but it also spoiled me. I probably would have worked out a better system for "me", if I had to do things on my own sooner. Just a thought.
As far as bfing...I say, definitely give it a try. It is SO healthy for them and you. My attitude was, "I"ll try as hard as I can, and if it doesn't work, I'll be okay with that." That worked for me for 3 months. Then I weaned them to bottles. Yeah, I wish I could have done it longer, but with work looming, the pain I was having (which isn't typical--I'm still not sure what happpened)....I had to make the best decision I could at the time. It worked, and ironically, my babies started really thriving weight wise once we stopped bfing. Go figure?
I did go back to work part time when the babies were 10 weeks. I'm a teacher, and we need my insurance. So, I worked every day from 11:30-3:30. For me, it was an ideal situation.....it gave me a little "freedom" every day. (Before babies, I never would have considered work "freedom"! ha ha!) Now, I'm on summer vacation...we'll see how I handle being a SAHM! I'm a major "busy body", so I hope I don't drive the kids nutz! ha ha!
Good luck to you. Things have a way of working themselves out. Yes, it WILL be a challenge when the babies first come home. There will be nights when you are EXHAUSTED. BUT, those days fly by way too fast.....trust me!