Yes, it is - I had to wear pads with DS1 from about 26 weeks. Unfortunately one came adrift during work one day, which I didn't notice until a colleague pointed out that it was making a break for freedom out of the top of my dress. 😳
If you can, ask your midwife for some syringes and start saving it for when baby is born in case you have any feeding issues. My DS wouldn't latch at first (traumatic birth) and the frozen colostrum I had was great over the first day or so.
You can massage your breasts and collect the colostrum in a clean shot glass and then suck up into syringe, label with your name and collection date and keep in the freezer until needed.