We have three six-month old hens. We have been getting one good egg a day for a couple weeks and now we just started getting a second egg this week. However, the second egg is soft like a water balloon; the second had a little cord on the end. We started feeding layer feed and pullet-sized crushed oyster shell at just over five months, so not sure why this is happening. From past forum posts it seems normal in young chickens, but we are wondering if there is some other supplements we can use to improve the situation. Thanks.