HELP!! Pain and pregnancy ?

About 5 years ago when I got pregnant the day my child’s dad and I had sex at around 3:30 pm I had THE WORST cramps and pain in my stomach a few hours after sex which I later found out is when I conceived. Now, last night (the day my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period app</a> predicted was my ovulation day) my husband and I had sex at about 11:30 pm and he finished inside me and literally all day today I’ve felt the same type of pains in my stomach as I did when I convinced last time. I just went to the bathroom and it didn’t go away..Could this be a sign of pregnancy or getting pregnant or what do you guys think?