Second Opinion?

Should I get a second opinion? All this began on January 27th.... I am a teacher who went to play volleyball in a school spirit event vs our 8th graders..... I am not an athlete. Nobody really wanted to play....all of the teachers volunteering to play were taking one for the team. I played sports as a kid. 39 year old female. Went to go for the ball...I did hit the ball and I think get it over....(I didn't see it)... my ankle twisted, my legs twisted and i fell down hard on the gym floor on my knee. I got up FAST as to not be embarrassed or draw attention to myself hopefully. Wobbled off the court. I went home and went to the ER the next day. Just an Xray they said I just had a sprain and fluid built up. I was suggested to follow up with an orthopedic... I was in pain on crutches couldn't bear weight...very swollen.. no bruising, and mobility was bad with bending etc.... I went to the Ortho on Feb 5th who suggested an MRI due to me being swollen still so much and limited mobility. With my MRI results I went back.... Feb 26th... Trying to make this long story shorter... Feb 26th I felt great. I wasn't in pain like right after... I still could not bend it and had only really discomfort that way... No bruising ever .. Had been using a cane just for support since I was limping... My swelling stayed consistent not really going down... by the end of the days it gets worse obviously... I am a teacher and I can't be off my feet like that... The doctor told me according to MRI I need complete ACL reconstruction and I have a Medial Meniscus Tear. Requiring surgery.......

I simply do not get it..... While yes I am still swollen. I am not in constant pain. I was feeling better despite still being swollen. I felt i was getting back mobility. By the end of the day my knee swells more and I ice and elevate... but I am not in excruciating pain. I have a limp. The cane helps support me... I guess I just wanted to understand does this happen to people who have torn it? I kinda want a second opinion. I do not want to have surgery obviously. I haven't scheduled my surgery I got a prescription for PT and I am supposed to go back to the Ortho on the 26th of March. I was hoping to push the surgery to the summer. I now feel I cant due to how tired I am and uncomfortable by the end of a school day. I never sit down ever..... I just thought if I had such a severe injury I would be in more pain? I am debating getting a second opinion with my MRI to see if do I really gave to go through this. I am feeling I do due to the fact the swelling really has not disappeared in so long now. What would you do? If I get the surgery or I guess really when I planned on an allograft . I am not an athlete... I just want to be able to bike, walk on treadmill, jog in the future etc. Part of me wants an autograft but I do not want to be gone from work for a longer time or in significant pain. I don't want to take any type of pain killers after surgery only tylenol etc. I just am stuck on the idea of a second opinion........ Thank you in advance for the feedback. I appreciate it.