That's really only something you could know. People that think more than 2 kids is enough and people shouldn't have more than that, would say definitely not. People that think we should accept what God give us no matter how many children we end up with will say you definitely made a mistake, and some people just don't believe in tubals because of this exact reason (we never know what the future holds for us), and a lot of them will say you made a mistake, and some people believe that a tubal after 3 is definitely not a mistake.
But, either way, what's done is done. You can't dwell on whether what happened in the past was right or not or you'll go crazy. Now, you just need to set your priorities, pray, and really search within yourself to find out if this is really what will fill the void in your life and is what you and your fiance really want and need. Then, the next step is to figure out your options and decide what you can and want to do about it.
I've known 2 people to have reversals that have turned out really well with good results and babies after, but I've know people that it didn't work for, also. It's more surgery and a lot of stress, but it's definitely something to think about if that's the route you want to go.
If you're going to try a reversal, I'd say do it right away. The longer you go with the tubal, the lower the chances that a reversal will take.
Another option is surrogacy. I personally don't believe in it, but it's another option for you to think about.
Your other option would be, of course, adoption as you mentioned. Another long and stressful process, but still something to think on.
And, your last option is to do nothing and try to find something else to fill that void.
I wish the best for you and pray everything works out for the best.
Good Luck with everything.
K.
SAHM of 4 (6,5,3,&1)