Slightly off topic, but picking up a different point OP made, that of seeming so young at 10 and not knowing how she will feel when her dd is 14/15
happypiggywiggy
Recently I had a chat with my ds. It included talking about masterbation (not what it was, because he knows that, but just in general); porn (including what it was); how to react if someone should suggest he googled a word/term or gave him a link to a site/video (prompted by a thread I had read on here) sex; getting a girl pregnant (or not) - and when it would be best to talk to me (or someone) about having sex, before they dtd or when she was pregnant; options for when someone is pregnant, what the words meant, and how the choice was all the girl's, not the boy's (not disputing this, just giving him the fact); about how being a parent is hard at any age never mind as a school pupil. Not a long chat, and many topics to revisit but still a fairly explicit conversation.
He's 12.
2 years ago, I had done little other than answer questions as he asked them, honestly, but hadn't volunteered any information.
2 years ago, I would never have considered having the majority of the conversation I did at the age he is now.
2 years ago he was a child. Now he isn't. Now, the conversations need to start being had.
In another year or two, I will take him to the local FPC. I will show him where it is, explain to him what it is, quite possibly take him inside and see if someone there will give him a quick introductory talk.
I did not discuss porn, sex, pregnancy with him to get him interested and make him go and do. I will not introduce him to the FPC because I expect him to dtd under the age of 16. I did, and will, do because I know there is a chance he will come across these things/want to explore these concepts and I do not want him to do so without knowing where he can get support.
He may still be my little boy, but he is no longer a child, and the difference the last 2 years have made is amazing.
Just coming back to the point in your op, you are worried about the hormones and no one to watch out for side effects. I spent many years on hormonal contraception as an adult, and never realised the side effects I was suffering until I came off them, and nothing was pointed out to me by friends and family who knew I was on them, so I can only assume they did not make the link either. So even if you did know your dd was on contraception, she may still suffer side effects without you realising.