This is really stupid since I am on the pill and we are not TTC. But DP has been told that he has some kind of chromosomal disorder (translocation?) which, from my reading, mainly of blogs, seems to suggest that there is a high chance of miscarriage if we were to conceive. The articles I've read say that most miscarriages would be early on and the couple aren't usually aware that they are happening.
The plan is that before we start TTC - in probably about a year or so, after we are married, we are going to see a genetic counsellor and find out what the score is, but ever since I've looked this stuff up I've started to get really paranoid every time I have a period. It hasn't been every time because we have been living apart due to an international move, so haven't always been sexually active, but when we have been I get really worried when my period arrives. I use a mooncup and I've been frightened to look at the contents just in case I see that I've miscarried.
What's not helping is that recently it seems like my periods have changed and I've been getting clots which I've never had before, and (at least once) a piece of spongy-looking tissue, which I asked about on here and was reassured it was probably womb lining. I've also been getting stringy, mucousy blood which I don't remember having before.
I've only just realised today how worried and scared I am feeling about it. I know it's ridiculous because I'm on the pill and it's rather unlikely we would have conceived anyway. (Although this month I did miss one, we used condoms for 7 days afterwards, but had already had sex a few days before and I couldn't get the MAP). Possibly also DP made me feel a bit jumpy this month because he said he had a "weird feeling" I might be pregnant and asked me to do a test (which I didn't, because it was far too early). I am absolutely the world's worst at convincing myself I'm pregnant when I'm not and apparently don't need much persuading 
But yes - oh god, this is an epic ramble. I am wondering if, firstly, I am freaking out unnecessarily - is it one of those situations where if I'm going "Oh, I'm not sure, there's maybe something, but I don't know" then it definitely isn't the case because it would be far more obvious? And secondly, in the (very unlikely, I am sure) event that I did have a miscarriage at 4 weeks or before, would there be anything to see anyway? ie, am I freaking myself out for no reason when realistically I would never actually know?