Some examples of substrates used (also known as chromogens) are AEC (3-Amino-9-EthylCarbazole), or DAB (3,3'-Diaminobenzidine). Use of one of these reagents after exposure to the necessary enzyme (e.g., horseradish peroxidase conjugated to an antibody reagent) produces a positive immunoreaction product.
1. Know When You Ovulate after Childbirth. Most women experience an extended period of bleeding immediately after giving birth. The bleeding will get lighter and lighter, lasting about six weeks. It is extremely unlikely that a woman will become pregnant during this time, although it is not impossible.
Getting Pregnant after Taking Birth Control Pills. If you were taking birth control pills, you may begin to ovulate as quickly as two weeks after discontinuing the pill. It is hard to say how long it will take for you to start ovulating again. Some womenâs fertility returns as soon as they stop taking the pill and others take a few months.