So to measure your intra mammary space...you take a ruler and measure from the base of one breast to the base of the other. It is the space between the breasts where your cleavage begins. Hope that helps.
I have noticed breast changes this time around mostly in the first trimester, nothing recently, which makes me a little nervous, but I must remember some is better than none. I hope and pray to leak a little
Also, I spoke with another IBCLC, and she too recommends having my prolactin levels tested 2 days after birth. The level should jump to 200 and something. she also spoke of prolactin receptor sites and having enough of those, there is no way to measure the amount of prolactin receptor sites, I'm hoping that the work I put in with DD created more sites.
I like that we are all sharing what we are learning as second time moms. I feel much more prepared!
I haven't noticed many changes lately either, so just hoping.
According to the book "Making More Milk" the prolactin is what will sustain milk making cells, so basically we have to convince our breasts that they really need to be working hard to make milk/resupply milk quickly and that is what the receptors do if I'm understanding correctly. It also says
"The development of prolactin receptors in the breast is believed to be related to the frequency of early suckling stimulation and milk removal: the more often baby breastfeeds in the first days and weeks after birth, the more receptors are made.Good receptor development is critical to sustaining long-term milk production."
Which might be why there are a lot of recomendations for pumping (using a hospital pump) for the first 3 weeks in addition to nursing. It also looks like Domperidone works by increasing prolactin levels. I'm not sure what herbal supplements help with prolactin levels though.