Conversation: The conversation between human and AI assistant.
[|Human|] I believe I am 5 weeks pregnant and have been taking tetrasyl for several months. We had IVF to conceive our first child so did not believe it was possible to fall pregnant naturally otherwise I would not have carried on taking tetrasyl. How dangerous is this to our unborn child? Very concerned and would appreciate some advice.
[|AI|]  Hi there,Tetras is an antibiotic which is not recommended to be taken in pregnancy, but it is not known to cause any major defect in the baby if taken during the first trimester. Studies have shown that it effects the baby if taken after 4 months of pregnancy, causing the babies teeth to be discolored and can cause hardening and cause excess calcification of teeth and bones which is irreversible. But, since you are exposed to tetracycline at such an early gestation it is very unlikely to have affected your baby. Only minor abnormalities are known to occur in few women. Do not be overly concern and get a NT scan at 11 weeks and an anomaly scan done at 20 weeks to check for anomaly. Hope this helps. Regards.