Follicles will develop and get larger up to the day they ovulate. Once they ovulate the follicles turn from hard to soft. At this point she is pregnant. There are chances she will absorb them as well, so at this time since you still feel them i would keep putting a male with her if possible.
About 2-3 weeks before they ovulate they will have a extreme glow to thier color which makes it look like a new snake.
Once they ovulate they will shed 2-3 weeks after wards called their Post Ovulation Shed(POS). Once they complete their POS you will want to mark on calender 25-40 days of when to expect eggs to be laid.
Once you get eggs laid you will want to incubate them at a 88-90 at 90%+ Humidity for 55-60 days. This can be done artificially with a built incubator or maternal.