My husband and i had sex on Feb. 14th it was the day my period stopped and he did cum inside me. The next morning when we woke up i still bled a little. From that time until the next time i started my period i felt very nauseated. Then i started my period in March, after my period i still felt a little nauseated. Now my nausea has gone away and my appetite has greatly increased. I took 2 pregnancy tests and they came out negative, but that has also happened with my other two kids. Is there a possibilty i could be pregnant ? Please help ! !