If you are in a position to do/have what you really want - then go for it!!! It sounds to me like what you really want to do is be a mother. Being an LPN is NOTHING to be ashamed of. I have, and continue, to learn from LPNs all the time. Nursing school is hard work - if I didn't want it as bad as I did, I would have quit the 2nd semester.
God love you for wanting to be mother - I love all four of my children, but if I had to be a fulltime stay at home mom - well, there just aren't enuf good drugs in the world that would make that work for my sanity
If you have to work and need the extra income an RN would give you, then go for it. If you like what you do and want to work - do you need the RN to do that or can you continue to do that as the LPN?
Be proud of what you do - LPNs are wonderful!!!
And congratulations on your upcoming marriage