Ovarian Cyst Surgery

First time posting, really need some advice! 
I had a miscarriage in January, my husband and I have been trying to conceive using NFP since June and last month (October), I went to the ER with pain that I thought was a kidney infection, but it was actually a 3.5cm cyst on my right ovary. 
Last week, I went to my OB and had another ultrasound done. Cyst is still there and the same size. He said that it was most likely a mucus cyst or endometriosis. He said it would be easier to conceive if it was removed so he scheduled a laproscopy for 3 weeks from now to remove it. 
I am worried that there could be other courses of action that wouldn't risk complications like possibly removing my ovary. Because my husband and I are Catholic, we will not consider IVF as an option, so I would really like to keep both of my ovaries and do whatever I can to conceive naturally!! 
Any advice or encouragement would be greatly appreciated! Thanks.

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