a slight ache in my left ovary

Hey guys. I'm 6 weeks and 4 days. I have very few symptoms as I did my last pregnancy (my son is 1) but I take a test like every day and the test line keeps getting darker haha but I have this slight dull ache every once in a while on my left side and I would imagine it's my ovary. Nothing even painful, just something I feel on occasion. Is this normal?