Sometimes, when people discover something about themselves in which “feelings”
might present a sense of inadequacy or self-rejection or unworthiness, it is common that a sense of feeling “called” can present itself as a solution, that is, a sense of purpose and therefore worthwhileness.
This is generalizing obviously. It may not occur in your case. Lots of information not available on
you.
It could be suggested though that you explore the relationship between your social understanding of OCD, your discovery of OCD in yourself, and its relationship between to timing of your sense of being called.
It’s also worth mentioning that as a nun, guess what - you’re married (and wow what a marriage!)

And, as a nun, if you’re charism is working with kids, which it could very well be, guess what - you’ll be a mother to many!!

It’s definitely not a loss, and not even a substitution. It’s a “calling” !
They often say that good husbands would make good priests, and visaversa.
I think it can be said that if you’d make a good wife, you’ll probably make a great nun!
And if you’re the gentle woman that Mother Mary is, you’ll be a really awesome nun!!!
Here’s a perspective:
Kids love their mothers. Be a nun and you will be so rewarded with OVERWHELMING love that it will wrap you and envelope you in a spirit of generosity that will be as close to heaven as any human on earth ever experienced!
So, discern it by first
clarifying the relationship between your personal experience of OCD and your sense of vocation in life. That’s a worthy pursuit.
Godspeed.
