Horse lovers when do we quit riding?

I am 8 weeks 4 days, I have an amazing 3 year old that I had started from a wild yearling. Shes is the "bomb proof" horse, I figured someday im having kids I want a safe sound sane horse to ride! It would be extremely hard to give up the habit, although the safety of my child will always come first. She never spooks even in new situation(she can at any time but has not), We have extensive work with firearms trails jousting, events parades movie shoots she has always minded very well and is just over all great. How many of you still rode while pregnant and when did you give up? I have been sticking to light riding such as trails light arena work and putting in the pasture. I have stopped reigning jumping and barrels, even Jousting and riot training, I dont want to risk falls of any sort. Although light riding is better than none it gets boring. The only excitement she gets is when my husband takes her to riot drills( I am involved with a group that you may think is odd but the training experience is awesome for horses to gain confidence in bad situations) ( I have to seriously beg him to take her as she loves it) . My poor critter is so bored! Is their anything we can do to spice it up for her? Also is it safe for me to be riding at all?