it is fine to take from 32 weeks here I have copied an article from midwives online website which should put minds at rest
"It?s commonly believed that drinking raspberry leaf tea or tablets will help to induce labour and this supplement is taken by many a pregnant woman keen to speed up their baby's arrival into the world. Unfortunately this is a misconception; raspberry leaf tea doesn't actually help to bring on labour at all.
In a study carried out in Sydney, Australia (1), 192 first-time mums were given either a 1.2g raspberry leaf tablet or a placebo twice a day from 32 weeks of pregnancy. The herb had no harmful effects on mother or baby, and those women who had taken raspberry leaf tablets were found to have a shorter second stage of labour and a lower rate of forceps delivery (19.3% versus 30.4%). However, far more research is needed to confirm these results.
Raspberry leaf tea contains the alkaloid 'fragine' which is said to strengthen and tone the muscles of the uterus, helping them to contract more efficiently during labour.
It is very important not to use raspberry leaves until the last two months of pregnancy because of their stimulating effect on the uterus. Once you have reached the 32nd week of your pregnancy you could begin with one cup of raspberry leaf tea a day and gradually increase up to 4 cups or tables a day (although this may vary in accordance with the strength of the blend and the manufacturers instructions). The tea can be sipped freely during labour, too.
You can buy raspberry leaf tablets from health food stores. However many women prefer to make a tea from the dried herb, which is available from some health shops.
1 Simpson M. Parsons M. Greenwood J. et al. 2001. Raspberry leaf in pregnancy: its safety and efficacy in labour. Journal of Midwifery and Women's Health. 46(2): pp. 51-9.
Ferguson P (Feb/Mar 2009) turning over a new leaf for pregnancy. Midwives: The royal College of Midwives p 34-36"
www.midwivesonline.com/parents/parents1?ttl=faqans&faq=285
I'm going out tonight with dp for dinner italian can't wait!