Our Applicator is designed with a thin barrel (about the width of a tampon) to allow for greater comfort during insertion, allowing you to insert ejaculated semen higher up the vaginal tract so that more sperm reach the egg. You might want to consider the Applicator Extra, which comes with an additional Soft Tip to enhance comfort during insertion while reducing immediate semen leakage.
Based on our customers’ experiences, our Applicator has been helpful for those with mild vaginismus, however, it does depend on the severity of vaginismus. It would be good for you to check with a medical expert, as everyone’s conditions are different. Here's a pregnancy story from one of our couples who got pregnant with the twoplus Applicator despite having mild vaginismus!