Curious as to whether others experience the same thing as me or have any advice..(a little long..)

Alexandra • 22, Special Education Assistant, Engaged 💍, Mommy to a premature rainbow baby girl 8/3/2018 🌈 👶🏽🎀

A little background info...I am 22, I started my period when I was 10 and was on birth control (pill) from 13-21. While I was in bc my periods were of course regular as to they were the same week of the month each month. Usually about 3-5 days and never very heavy. I’ve always worn light absorbency tampons or thin pads/liners. And I always started first thing in the morning. I stopped my bc in March this year. I got pregnant in June but had a missed miscarriage/d&c; in August.

On to my actual concern/question. My af in November was only 2 days and day 2 was very very light, pretty much spotting. Then nothing else. December’s af began on the 4th but not until late afternoon/early evening. I bled the 4th and 5th, nothing on the 6th so I thought I was done and had a really short af again. But I started bleeding again yesterday (the 7th), enough that I thought I needed to wear a tampon especially because I wasn’t going to be home for a couple hours and wanted to be safe. When I got home and took it out there was almost nothing, like I probably would’ve been safe with just a larger liner. And I’ve had nothing since. But now I have uncomfortable pains in my pelvic area off and on and switching sides..

Is this normal for my experiences or any guess on why things are so different?