Kinda Concern!

So my boyfriend and I had sex about 3 weeks ago , everything been chill with things . Recently everybody goes through the whole ovulating window within there period . but my stomache has been kinda bloated and hard . So I recently got my results back 3 days ago for some test and they all came back good but no pregnancy was noticed within in test . but is the ovulating causing my stomache to be hard/bloated ???