Donor question

Robyn • Married lesbian. Proud Mommy to a little 👦.
Hey ladies. My wife and I will be doing our 3rd cycle of at home insemination. The original donor we were using was open to communication for the child is 18. He is now unable to donate next month. We are looking to find another donor or go back to using a sperm bank. I'm battling whether we should use anonymous donor? I don't want the child to hate me for the decision. I hear ppl lie and say the father passed or something if that sort . I don't want to lie. I'm going crazy right now. Hopefully y'all can give some input.