see what you can find online from susun weed or in her book wise woman herbal for the childbearing year. I think she suggests motherwort and skullcap tinctures, but one might be mainly for pospartum. I used skull cap after dd for sleeping and anxiety..it take abot an hour to kick in and is mild but effective at taking adge off. Some people use valerian but it makes me hyper and I don;t know that i'd take it while pg or cosleep depending on how much you have. You can usually write to susun weed as well and ask questions.