I cannot help with that due to a 20 YO vasectomy. However, what a recommend is that you acquire a spanking bench which doubles quite nicely as an impregnation bench, and about a half dozen fertile gentlemen. You strap her down to the bench when she's ovulating, blindfold her so she has no idea who did the deed, and invite the guys over for a pregnancy party. 4 to 6 hours of gang raping later, and then wait nine months. Repeat monthly as needed until she's knocked up.
My dungeon is ready, name the date you can get her to Cleveland. Send your email, and I'll forward my address.