Mild cramps

I have been having mild cramps the last week and bloating in my lower abdomen my last period was Jan 17-22 we had sex the 31st and then feb 1st my left ovary was aching so bad! I’m suppose to start my period early March since their irregular according to my app but I’m wondering if this is an early sign

you think it would be too early to test? These definitely aren’t normal for me and I just feel pressure in my uterus. my first pregnancy I didn’t even know I was pregnant until 5 weeks and didn’t notice much changes before I found out.