Typing between contractions...

a few days ago the babies head really engaged, dropped down low.

I have heaps of pelvic / rectal pressure. 2 days ago starting having blood streaked mucous which is getting bloodier. We DTD all week without any spotting, and dtd the night before it started, so not sure if the DTD caused it, but it has been happening for 2 days now.

Contractions started last night around 11 pm, not too painful. Became regular, 6 mins apart at 2 am, they were more painful then the ones at 11 pm but I thought not painful enough to be real. Didn't sleep all night, contractions continued, but now are starting to slow down.

What do I do? Is this the real thing? The contractions hurt but are not excruciating. I lost my plug weeks ago. Last checkup I had barely gained any weight (1kg in the last 5 weeks) nothing in the urine, bp slightly elevated but not much.