Hi, 2 years ago I had to have a caesarean section & at the time I wanted my tubes tied - they talked me out of it at that time.
Howver, I do remember then giving me the statistics of becoming pregnant after having them tied, compared with stats for a man after vasectomy, & I was shocked to discover how common it is to become pregnant after tubes are tied - we went for the 2nd option in the end!
I really think you should stop worying about it, just go & speak with your doctor to see if you can this reversed anyway
good luck, I wish you well.