I am a 38 yo mother of a 3yo dau and 6yo son, have my 3rd round of chemo tomorrow. I know everyone is different and so are the drugs - I'm on 3 rounds of FEC and 3 rounds of Docetaxel. I have been very lucky and have no major side effects besides hair loss. When friends ask how I'm going I tell them I've felt worse with gastro!! I wish you the same. After my lumpectomy I told my kids I had to go to the hospital to have some yucky medicine every few weeks that would make my hair fall out and maybe make me tired - so far treatment has not affected them because as I say "it's business as usual in our house" If I keep it normal then my kids are completely fine.
My only advice would be dont go out buy all sorts of things to remedy a side effect that might happen, wait until it does - e.g I have too much laxative for constipation and ginger beer for nausea in my house as I haven't needed them, but do drink lots of fluid after treatment to help flush it out, water is best in regards to being healthy but have cordial if you cant stomach too much plain water.
I also agree with not reading to much, I dont want to stick my head in the sand but you will feel alot more relaxed about it all, you cant change anything at the moment so dont worry yourself if you dont need to. If I worried about if my kids losing their mum too young I'd be a basket case by now. Dont think about it, enjoy them and if you do have bad days, they wont last for long. Good luck!