J.L.
I am not certain there is an actual increased risk, but more so if it is and is not caught in time the second tube can be removed and you will be unable to conceive naturally in the future. Women who have had a tubal are encouraged to go to the doctor as soon as they think they are pregnant. The doc can give a super sensetive pregnancy test. If it comes out positive then they should do an ultrasound to find the placement.
I aunt had a tubal in 1982 and had one tube removed. Since then she has had no complications and 7 kids! But everytime she suspected she was preggo she had to go to the doctor. Sometimes she went and was not pregnant. Good luck, I wish you the best.