Ectopic or wrong diagnosis?!? UPDATED

I am 5w2d, based on LMP (I thought I was 5w2d on tuesday, but ive checked my calender and realized I had the first day of my last cycle wrong - first day of my last period was April 6th. I am positive conception happened sometime between April 19-21.

On Tues 5/10/16:

Had ultrasound, nothing seen in uterus, doctor noted "bloody cyst" on my left ovary.

Beta hcg 5/10/16: 650

Beta hcg 5/12/16: 1350

Today 5/13:

Internal ultrasound, no sac seen.

Doctor believes he "may see" ectopic pregnancy on left side near base of tube but said he is "not 100% sure" but at 1350 hcg, he feels he should see something in my uterus.

He immediately wanted to do laproscopic surgery today to see what is going on. He also discussed methotrexate treatment. He said with surgery, I will likely lose my left tube, but keep my left ovary.

I am very confused. I was immediately overwhelmed and told him that I was not in an emotional position to make an acute medical decision and that if he was not 100% sure it is ectopic, I wanted to wait awhile anyway. My doctor advised me it could be dangerous to wait but said if I am going to wait, he would like to do another beta test tomorrow and an ultrasound on Monday and if he sees nothing on monday, he would like to discuss surgery again.

I am so completely crushed. I am also having a hard time understanding the diagnosis of an ectopic so early. I don't want to get my hopes but this just feels all wrong to me. Im willing to risk it by waiting for a bit to see if he is wrong.

Earlier this year, I experienced a miscarriage, which is one of the only reasons I had such an early scan. I currently have no other symptoms of an ectopic pregnancy. I feel like if I hadn't had this early scan, my dr wouldn't suspect an ectopic and wouldn't feel laproscopic surgery or methotrexate is needed.

5 weeks just seems too early to diagnose an ectopic pregnancy. I just met this obgyn for the first time on tuesday. It's only friday. Everything seems so rushed, especially since he isn't exactly sure what he sees or does not see and I don't have any symptoms of an ectopic. I'm 34 and would be FTM. I'll do just about anything to be certain this pregnancy can't continue before I make a big decision, even risk my health, as silly as that may seem to others.

UPDATE:

I'm so glad I listened to my instincts and held off a bit on surgery. We were able to see my lil bean today and everything is ok! 5w3d according to the ultrasound!