Warning! Descriptive! Crotch pain @ 24weeks?

Nicole • Expecting my first April 15th,2016. 💙💙
So I Have to be honest here because that's what will get me answers. Yesterday morning I had sex with my bf , he also ate me out , fingered me very hard, and than I climaxed by masturbating only an hour later. After all this sex, I worked a 12 hour shift (I'm a server @ a country club) and when I would stand in place or sit down I would get this feeling in my vajay that felt like there was blood rushing to it making it super puffy. It almost felt like the day of getting your period with the dull achy pain in the clitorid. No blood or anything came out of course, but it made it very hard to work with the achy was , I had to keep crossing my legs. Today i woke up and it went away and hasn't been back, I also fingered myself today, but the same pain did not come back. Anyone ever get this feeling? It has Never happened to me so wondering what may have happened.