A: In these early weeks of pregnancy, the embryo is attached to a tiny yolk sac that provides all the nourishment it needs. A few weeks later, the placenta will be fully formed and will take over the transfer of nutrients to the embryo. The embryo is surrounded by fluid inside the amniotic sac.
You are perfectly safe to be taking the herbs because in the beginning the baby is not feeding from your body, instead it is feeding from this little sac. We suggest this very conservative plan: Counting weeks as starting on the day of your last menses, count 6 weeks. If you have not tested positive for pregnancy with your home test, but have not yet started your cycle, stop your herbs and supplements and see a doctor for a blood test.
Perhaps you are pregnant but the hormonal levels are not strong enough to show up on the home test. The blood test will let you know if you are pregnant or not. If you are pregnant you can have a party (alcohol free of course!). If you are not pregnant then resume your herbal program.