This may be more helpful
I had the jab last year as was in continuous contact with H1N1. I was told that the pandermix was safe at the time but opted for cevlapan for the following reasons
( I have copied and pasted this from another site, but the infor is true and accurate)
Things to consider
1.) live virus - both these vaccines are inactivated vaccines containing no live virus and therefore are safe for pregnant women. Ordinary flu vaccines have been used in pregnant women for a long time and cause no problems. In fact, the antibodies, produced by women after the vaccine, transfer to the baby and may provide some protection for the baby against flu after it is born. The swine flu vaccines have been made exactly the same way as normal flu vaccines have for decades.
2) Thiomersal - this is a preservative containing mercury. In the US and other countries mercury has been linked with neurodevelopmental problems in children, and is banned from childhood vaccines in lots of countries. However the FDA doesn't think it is harmful for pregnant women. We naturally ingest mercury from food sources (e.g. fish) and the amount in the vaccine doesn't take our intake over safe levels. Also recent studies have found no relationship between thiomersal and developmental delays in children. The GOOD NEWS is that celvapan does NOT contain thiomersal (while pandemrix does).
3) Adjuvants - there is some worry that adjuvants (which boost the efficacy of the vaccine) aren't safe in pregnancy but I don't know any evidence either way. The GOOD NEWS is that celvapan does not contain adjuvants, but because of this you need two doses of it rather than one. Pandemrix does contain adjuvants.
Therefore, it seems like celvapan should be safe for pregnancy, and pandemrix is thought to be safe but if you are worried about mercury and adjuvants you could avoid it and ask for celvapan. However, celvapan will take longer to become effective as you need two doses over 3 weeks instead of 1 dose
This is probably now irrelevant as these vaccines are not as commonly used as the general flu vaccine protects against H1N!
This is a list of vaccines currently being used by the NHS
Intanza
Is currently used for adults, the british national formulary says it is not known to be harmful in pregnancy, the manufacturer says that safety in pregnancy has not been fully established but is considered safe in the second trimester and does not contain mercury
Fluverin
is licensed for over 4s but does contain traces of thiomersal (mercury). It has been used for pregnant women, but again, the manufacturers say safety has not been established although the bnf says no known harmful effects
Enzira is licensed for the over 5s and does not contain mercury (strugling to find the package insert for this) but does carry a increased risk of febrile convulsions under 5. Although I cant find the insert, it would be safe to say its safety has not been established.
From this, I would say that intaza would be a reasonable choice. However I would say, talk it over with your GP and ask them to take advice from your obstetrician if necessary. From what I recall on discussion with my local epidemiologist H1N1 should not be as much of a problem as it was last year, though it will not completely disappear. It can be difficult to predict and we do consider all pregnant women to have a degree of imunocompromise. I was immunised when pregnant because I unfortunately saw first hand the devastating effects of H1N1 during pregnancy
Hope this has been helpful