Does being pregnant make your asthma worse?
If you’ve never had asthma before, you’re unlikely to develop it as a result of being pregnant.
Overall, the effects of pregnancy on women who already have asthma are very mixed:
- a third of women will find that their symptoms get better
- a third of women will find that their symptoms get worse
- a third will notice no difference at all in their symptoms
There’s no way to tell how your pregnancy will affect your condition.
If you are one of the women whose symptoms do get worse, this is most likely to happen in the second and third trimesters of your pregnancy (after 13 weeks).
One study found, that asthma symptoms were at their worst between 24 and 36 weeks, but after this, symptoms dramatically decrease or disappear. Most (90% of women) have no asthma symptoms at all during labour or birth.