Can anyone offer any advice please? I am 23 weeks pregnant and just spent half an hour unblocking the drains using caustic soda... it was only when I started coughing that I realised that I should have covered my mouth. I have aired the room and stood outside but am now panicking because I can't feel any "flutters" from the baby. This is my first pregnancy so I might be overreacting but can anyone offer any advice please?