Ectopic pregnancy & me

So... I'm currently recovering from having my left tube removed from an ectopic pregnancy. I'm not very knowledgeable on the whole thing.. I'm still a little confused and need some questions answered. In January, I had a normal period. It ended on new years day. February, I skipped my period , took a test and it was Negative and on March 10, I began bleeding. I assumed it was my period so I didn't question it. However, it lasted for 10 days... some regular bleeding, some spotting and alot of clots. On Sunday, March 19, I suddenly got a sharp pain in my back and it started radiating all around my uterus and ribs.. the pain was unbearable. I immediately went to the hospital where they tested my urine and I was positive for pregnancy. I was ecstatic! I've been trying to conceive for so long now and it finally happened! I'm waiting in the hospital for several hours.. I know that because I'm pregnant that the bleeding was not normal and something was wrong. Was it a miscarriage? An EP? Was there something wrong with my baby?! I began to get emotional and then the dr walked in... he explained to me that the egg was fertilized in my left tube and would begin to grow there if we didn't take action now. I'm assuming they can push it into my uterus or do some magic and make this pregnancy stick. But that wasn't the case at all. He explained to me that I would have to have the tube removed and I would lose the baby. Every emotion that could have hit me, did. It was the worst news I have yet to receive. The performed the emergency surgery and sent me home that night. I had my followup appt with my Dr that following Tuesday and he explained that it would be very difficult for me to get pregnant due to only having the one tube now. It's been a week and I'm still in shock. I have Googled several questions about this and nothing seems to answer my questions fully. I figured this was the best place for those types of questions. So here goes....

1. How long until I can drink alcohol?

2. When can I begin to have sex again?

3. How long until my period comes back?

4. When can I try to conceive again?

5. Do you know of women getting pregnant without complications who only have one tube?