Help! Lost virginity and period seems weird afterward...

Hi everyone! I'm stressing myself out here...

Basically, my period is like clockwork, my avg cycle is 28 days with around 2 days of heavy beeding, day 3 moderate, and day 4 light.

My last period was 10/31. On 11/7, I lost my virginity. He did use a condom (and I'm not on BC) and tried to enter but could only get the tip in. So after like a couple of tries, I'd had enough and we stopped, but he did finger me. Based on my normal cycle, my period should have came on 11/27 but it came on 11/30.

My period started with a pink discharge (never had that before) then the blood eventually started flowing. However, later that evening, I had this slimy looking thing laying on my pad when i went to go change it **WARNING graphic photo** does this look like an early miscarriage? Was I pregnant and didn't know it? The photo looks similar to a 4-5 week miscarriage to me but I'm stressing out because he used protection plus I don't have health insurance at the moment so I can't afford to go to an OB/GYN right now. Before the period started, I did have mild cramping in my uterus and a lot of mild cramping in my left pelvic area.

I'm on day 3 of my period and the blood is less period-like and more thin but is bright red. I took two pregnany tests just because and both were negative but I'm so scared I could be pregnant because my period is really weird right now. I also have mild shoulder discomfort which I read is a sign of eptopic pregnancy and those type of pregnancies usually show up negative on tests.

I don't know what to do and I'm really scared. Please any thoughts would be helpful!!