I took them both times until the end of breastfeeding. The ones i have are pregnancy and bf anyway, so it's recommended throughout. ALso some of the vitamins and minerals are ongoing. Things like Folic acid is the first trimester or so, but the other things are needed throughout, such as iodine, fish oil etc.
All I took was folate, and I took that all the way through TTC, pg, bfing, TTC again, second pg and stopped when I'd been bfing DS2 for quite a while - maybe a year or so. If you have a good diet, you mostly don't need supplements other than folate (also called folic acid). Some women do need iron but a bt will be able to tell if you need to or not.
I took mine all through TTC, preg and BF....
It cant hurt and I found I felt lot better if I kept taking them.
There are some that are for preg and bfeeding (blackmores i think) - that's what I took..
They also have other preconception ones which I will take in the lead up and during TTC
Bookmarks