The quality should be the same if you drink it within 18 hours. :) red clover would be excellent too. Oatstraw is rich in minerals that are helpful to life formation. If you live near a place that has a china town, go to a chinese herb store/pharmacy, and ask for 'Dang Gui'. And ask for it in 'sliced' form. Its the highest quality, and it is sliced paper thin, so it is easy to simmer into a nutrient rich tea. I would drink it separate. It tastes great with a little honey or date sugar. (date sugar enhances its effects)

Once you are pregnant, then consult an acupuncturist or OMD before using dong quai further.
Dang gui (Angelica sinensis [Latin]), also called Chinese angelica, dong quai, and tang kuei, is highly respected in Traditional Chinese Medicine, second only to ginseng. It is commonly used to treat women’s reproductive health issues, but is also recommended to help prevent and treat some forms of cardiovascular disease.

Dang gui is one of many species of the herb angelica; other well-known species include Japanese angelica (A. acutiloba), European angelica (A. archangelica), and American angelica (A. atropurpurea). Each type of angelica is traditionally used to treat different disorders; for instance, European angelica is often used to treat inflammation, and American angelica is said to be good for indigestion. Chinese and Japanese angelica are the varieties that have been used historically to treat women’s health disorders, and these two types of angelica have been more widely researched than any of the other species.

Dang gui roots contain phytoestrogens, which are chemicals found in plants that mimic the effects of estrogen in the body. Dang gui is said to help balance women’s hormone levels, both restraining and supplementing the body’s production of estrogen as needed. It is used to treat menstrual and menopausal symptoms, including migraine, cramps, mood fluctuations, and hot flashes. It is also said to help speed a woman’s recovery from childbirth and symptoms of low energy/chronic fatigue.

Dang gui helps relax the smooth muscles throughout the body, which makes it a potential treatment for a variety of illnesses. Not only does dang gui relax the smooth muscles of the uterus, but it also keeps the smooth muscles in the arteries dilated, helping to maintain regular blood flow and heartbeat. Dang gui has been used to treat angina, high blood pressure, and irregular heartbeat. Some studies have shown that the antispasmodic, dilating effects of dang gui may help treat chronic pulmonary hypertension in people with chronic obstructive pulmonary disease (COPD), especially when taken in combination with the drug nifedipine.

Dang gui contains phytochemicals that help boost white blood cell production and fight inflammation, and may improve liver and kidney function. It is traditionally used to treat inflammatory diseases such as arthritis, and is currently being studied for its ability to prevent or treat cancer, liver and kidney disease.

Only the root of the dang gui plant is used medicinally. It is usually dried and ground to make the teas, capsules, tablets, tinctures, and other combination products available at most health food stores.

Pregnant women should not take this herb because it may encourage menstruation. Dang gui is also known to cause diarrhea in some people, so those with gastrointestinal difficulties should also avoid this medication. People that are taking blood thinners should consult a doctor before trying dang gui—it may increase the effects of these drugs.