Bruising easily?

I posted the other day about having back pain and a small bruise in the same area, well today I looked and there is a lot more bruising. Its not dark but its fairly wide spread. Its from my back onto my side in a couple different places, and is very tender and painful to the touch (duh its a bruise). My muscles have always felt sore when being touched or rubbed, but its to the point where even grazing the skin is painful. The only thing I can think of that would cause bruising would be rubbing the sore muscles, but me and my boyfriend do not rub that hard since its immensely painful for them to even be rubbed. Any ideas why I would bruise so so easily? Thanks so much. Also I'm 34 weeks and 4 days, baby measuring about 36-37 weeks.

Edit: Unsure if this is related, but I have Thrombophilia due to genetics which I'm supposed to take baby aspirin for but I'm bad with taking that one.