Bleeding after sex

Lilac

I noticed that after orgasming, I would bleed a tiny bit. I just pushed it aside to me being too rough and the fact that I have turned slightly dry during the process.

However, today is the first time that there is a huge amount of blood after having sex. Just to clarify, I was pretty dry and it did hurt me quite a bit but I was so into the mood that I kept going. When I did finally orgasmed, my partner moved away to change positions when he noticed the big blood stain on the bedsheets.

Should I push it aside as me being too dry and rough, or do you think I should get it checked? I've did my research online and it seems that there could be other possible causes such as cervical erosion, non-cancerous growth (which my mum previously had) and the result of taking the pill (which could be unlikely as the bleeding has been happening since before I got on the pill).

Just to add in. My orgasm fluid is normally yellowish with a tint of blood. Is that normal?