My last period was the 13th . Thats when it ended. Me and my SO had sex on the 15th . On Wednesday. I dont ovulate until the 24th. I took an ovulation strip on the 15th and it was almost positive the. After that its been negative. I know i can ovulate early late, wichever my body wants to do but what are the chances of us conceiving from sex 2 days after my period? Also its been a week now so how soon can i test?