Has anyone had / heard of success of pregnancy by manually inserting sperm?

TMI WARNING:

My husband and I are trying to convince baby #1. The only problem is I have an allergy to his semen which causes pain and inflammation when he finishes inside me. Recently we have learned if he cums outside on my body and we quickly move it inside it greatly limits my pain and discomfort. Does anything think this method could be successful?

Thank you in advance! 💕