Can anesthesia, surgery, pain meds and antibiotis affect my cycle this much?

I was in a bad car wreck on July 13th. I suffered compound fractures of both bones in my right lower leg (tib/fib) and compound fracture of my forearm (rt ulna). I had to have emergency surgery on both and was given antibiotics and pain meds throug iv in the hospital for a week and when I got out I stayed on antibiotics and pain meds every now and then. I had to have a second surgery on the 4th of this month, which meant more anesthesia and more antibiotics and pain meds. It has been six weeks since my last period. I had a tubal ligation in 8 years ago, but I read it is still possible to get pregnant. I would like to get some educated answers or from anyone who has had this experience. Thanks!