Dont take the nurofen.
I had a very similar experience when i was aboout 12 weeks pg with my dd now 9 mo. I had an abssess in my wisdom tooth and my mum ended up taking me to emergancy where they gave me antibiotics and told me to take two panadol with 2 nurofen plus.
I wasnt sure so i rang my birthcentre and spoke to the midwife and she said NO!
Nurofen plus can possibly cause blood flow probs in the bubs heart.
The best thing i found was lemsip max. Make yourself a mug and drink it slowly swishing it over the offending tooth and see how that goes.

Good luck!