Recently I had a chance to play a doubles match as a partner with a good teammate of mine 'C'. I like playing with her because she has a nice game, is fast and I love her punishing backhand which is so beautiful to watch when she hits a "down the line" .
But last time I played with her, at times her timing seemed off and she kept making double faults which was unusual of her. Although we managed to win the match, still there wasn't a punch in the winning. What I learned later not only stunned me but also put somethings about the match in place... she was in her 4th month of a pregnancy...
I was always under the impression (may be for lack of experience) that once a woman becomes pregnant she gives up all risky and strenuous physical activity until sometime after the pregnancy and tennis was definitely in the no-no list.
I still do not know what you can and what you cannot during the precious few months but definitely playing with a pregnant lady...now that was a first to me!