New hissing cockroach owner here--how do I tell if my cockroach Long John (female) is molting or pregnant? She looks like she's splitting at the seams. She's very large so we're not sure if she would even be at a molting age--we got them a month ago, so not too sure of her age. She hasn't done anything to indicate pregnancy except that sometimes her rear (?) opens as if she might be about to give birth. She hasn't done anything like that in a few days though. Thanks in advance!