Hi mama! I had the same issue during my pregnancy.
It's great that your doctor has already put you on low dosage aspirin for preventative measures, because once you get pre-eclampsia, aspirin no longer becomes a viable treatment option. Pre-eclampsia is also usually resolved when baby is delivered, which is why many of them are birthed premature to ensure mother's safety.
Do diligently take the aspirin daily and quickly contact your gynae if you spot any signs of pre-eclampsia (headaches, vision loss etc). There were a few times I did forget to take - just resume the next day and don't panic! You may also want to get a blood pressure machine if that eases anxiety. Every time you go to the gynae clinic, they should also routinely check your blood pressure to monitor.
I ultimately didn't even experience high blood pressure throughout pregnancy and baby is healthy at 2.95kg upon birth :)
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