hi there, I had sex with my husband last night, and he ejaculated inside me (we are trying for a baby). about 30 minutes later, I started experiencing cramping and nausea, this made me unable to sleep. 8 hours later I still feel the same pain. This has never happened before, and we have been actively trying to get pregnant for 3 months now. I did also take some painkillers for headache last night. 60mg of codeine and 2 anadin tabs. I have taken these before and never ecperienced this. Its like the period cramping I used to get before I had my daughter 6 years ago. Any help is appreciated. Thank you.