Girl babies are more likely to be born earlier than boys. Also, if you have longer menstrual cycles, you're more likely to deliver your baby after your due date – but you can never know for certain ahead of time.
Are first babies more likely to be late;
Yes, and also more likely to be early. But just a little.
If you are pregnant with your first child, you might have heard that first babies are more likely to be late. Also, you might have heard that they are more likely to be early. As it turns out, both are true.
If “early” means preterm — before 37 weeks of pregnancy — first babies are more likely to be early. Based on live births recorded in the National Survey of Family Growth, about 12% of first babies are born preterm, compared to 10% of other babies.
And if “late” means after 40 weeks, first babies are more likely to be late: about 15%, compared to 10% of other babies.
Do girl babies usually come early or late?