Hi,
I work with kids and have seen and heard about kids passing worms to parents so many times you wouldn't believe. Don't be embarrassed.
Yes hygiene and all of the things already mentioned are very important. Things people forget it to clean everything the kids use. This is to the point of all the toys etc. One thing people frequently forget is that children are smaller so the parts of doors for example they use are lower so you need to clean the whole of the bottom half of the door. If you have pets your kids might have got the eggs on them so they need cleaned and treated. It is a hard job, esp when late pregnant but it is worth doing.
I will leave you with a mildly amusing story: there was a nursery where one kid brought worms in and gave it to the rest of the nursery and they couldn't work out why they couldn't get rid of them. The kids were all treated but they were just getting them again. The nursery hadn't cleaned the lower parts of the doors where the kids were pushing them open/shut. As soon as someone pointed that out to them all was cured.