A reverse vasectomy can help in combination with sacred rites for rejuvenation. You should ask divinity in meditation and Dream Yoga regarding the best course of action.
Meditation will not harm you nor others due to your condition. Likewise, Second Chamber will help you, both in your current condition and especially in the healing process after a reverse vasectomy.
Whether you choose to participate in your current group should be decided by your Innermost, not by attachment to a school, the resentment of being excluded, the fear of spiritual failure, or the desire to conform. We do not know your particulars, which is why you should consult God, who has more wisdom than any instructor or group.
For thirty years I sought God. But when I looked carefully I found that in reality God was the seeker and I the sought. -Bayazid al-Bastami