I was in da middle of having sex when da bleeding started then later it increased . I was feeling xo dizzy but now t has stop what should I do

There's no way for anyone online, not even a doctor (and there are none on this site) to guess why this is happening, and guessing is all anyone could do.

If you're concerned about this, your only option is to see a doctor. You really won't find any help online.

Good luck to you.