You can't really get it out faster. However, if you level up more, your hp goes up much higher, to the point where being raped by the fly does chipping damage to you. Having it done repeatedly to you will get the eggs out faster. If egodevil has been raping you this whole time and you survive, or if your already pregnant, he won't touch you.
Speaking of egodevil, I can't get rid of him outside of some really contrived ways. When he's latched on, he'll keep raping you until he can't do it anymore, but there's no way to get him off before hand other than getting stabbed repeatedly by spikes (not the ones that shoot up). There has to be a way for you to be rid of him in the next version. Even Hanakanmuri only lets him do it once at a time...
