No one jumped you. When you participate, you invite comments. You said you weren't seeing an Ob/Gyn and you didn't offer up any information (at that point) that said you were seeing anyone else or had the knowledge yourself...
and considering how many youngsters and otherwise inexperienced folk peruse these forums, of course you're going to get advice when it "appears" you are taking a risky course of action.
You should be glad such happens... next time it might be something you need to know... and how do you know you need it if you don't know what to ask for.
We're just a helpful bunch of kinksters.