J.S.
I agree with Claudia. My husband played softball with his work & one of the girls was pregnant & the batter nailed her really bad in the stomach...She ended up in the hospital for 2 days & unfortunately ended up miscarrying because the hit was so hard. It really is a personal decision, but just keep in mind that unlike running, swimming, etc, that softball can be a bit risky in the case of falling or getting hit with a ball!
But, congrats on the pregnancy!