Soooo 😔 against doctors orders I had sex. But it was oh so great (hadn't had it since like…

Soooo 😔 against doctors orders I had sex. But it was oh so great (hadn't had it since like February). But afterwards, my stomach got really tight and started hurting. Plus my vagina started hurting. I sat in the shower/tub for about 45 minutes. My vagina isn't hurting as much anymore. But my stomach is still tight but my baby is also moving. What should I do?