My time of the month has passed without its usual affliction and I am dire fearful of the consequences of why this might be so.
It may make sense for you to spread your due dates around so that they are not all due at the same time of the month.
Some couples don't conceive simply because their work hours make it difficult for them to get together during the woman's most fertile time of the month.
Make sure you are using the test at the right time of the month as well.
Looking for signs of ovulation monthly can help women figure out their most fertile time of the month.