I am coming up to 12 weeks pregnant. Last night, my stupid DH, gave me two "Nightcalms" instead of Senna tablets for constipation. Not only am I furious at him, but I'm worried as I took double the recommended dose and anti hystemines I'm sure are not recommended in pregnancy. Am so angry and worried. Can anyone help? Obviously as it was 24 hours ago, there is nothing I can do- but desperately need some reassurance I haven't harmed the baby.