Help me?? why is my body doing this?

I've been on the combined pill for nine months now. I'm on my third week of my active pills this month. This whole month I've been so gassy and having stomach pains and just a few days ago I spotted a tiny bit of blood for a couple minutes and it's stopped since then. I've been pretty dry down there too which usually doesn't happen. The last time I had any spotting was my fifth month on the pill and it lasted way longer. I also feel like I'm constantly bloated. I probably shouldn't worry about pregnancy because the last time I had sex was two months ago with condoms as a backup and I've had periods since then. Is it normal for my body to just randomly do this? I keep getting scared about pregnancy when I know I shouldn't be because I haven't had any kind of sex since my last period including oral and manual. I have pregnancy paranoia and I'll worry myself into thinking I can get pregnant in the most impossible ways. I need advice on how to stop worrying and if this is normal