Thanks everyone. All went well, bubs was moving around through the whole thing which was reassuring. Interestingly though the dentist I saw wanted me to come back in a weeks time to complete the root canal (I only had the tooth drained and packed yesterday) and assured me it was perfectly safe so I went to book it in with my normal dentist (same practise) and he has said no to any further treatment until bubs is here unless it is an emergency.