Generally speaking, first babies tend to engage from about 34 weeks to 36 weeks. 
Find how many weeks pregnant you are on the chart below and scan back to see approximately how many months pregnant you are. (Note that you're not one month pregnant until it's been one month since your LMP.). Actually, the only month that's four weeks (or 28 days) long is February – that is, when it's not a leap year. All the others are either 30 or 31 days. So, on average a month is 30.4 days long – or 4.3 weeks. 36 weeks pregnant 38 weeks pregnant. 38 weeks pregnant. This week an important milestone will be reached – by the end of week 37 you no longer have a preemie in your womb. If he or she was to born by the end of this week, the baby is considered full-term. Development is completed and your If your baby's head engages early, it doesn't mean that you'll give birth early. Your baby will move down when the lower part of your uterus (womb) expands. Your baby's head, or bottom if he's in a breech position, will sit a little lower in your pelvis. June 6, 2014 Pregnancy Week By Week. 36 weeks pregnant 38 weeks pregnant. 38 weeks pregnant. This week an important milestone will be reached – by the end of week 37 you no longer have a preemie in your womb. If he or she was to born by the end of this week, the baby is considered full-term. Development is completed and your Generally speaking, first babies tend to engage from about 34 weeks to 36 weeks. However, some babies only engage once labour starts. Try not to worry, though. Even if your baby hasn't engaged by the time labour starts, in most cases, it's not a problem. Your midwife will note how many fifths of your baby's head she can feel above the edge of your pelvis. So 5/5 or 4/5 in your notes means that your baby hasn't dropped down yet, while 3/5, 2/5, or less means that your baby is engaged.
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how many weeks pregnant until you become engaged