When I became pregnant, I quit my job. And then, when my child got a little bigger, I started working again. In this way, I've been repeating this cycle of quitting and returning to work.
ご質問ありがとうございます。
"When I became pregnant, I quit my job."=「妊娠したときに仕事を辞めました。」
"And then, when my child got a little bigger,"=「そして、子供が少し大きくなって」
"I started working again."=「また働き始めました。」
"In this way, I've been repeating this cycle of quitting and returning to work."=「このように、辞職と復帰というサイクルを私は繰り返してきました。」
ご参考に。