Confused.🤔

My wife and I divided to start trying in January. February 17th we did an at home insemination. We waited until about 4 days before my period was supposed to start this month to take a pregnancy test, it came out negative then we waited 2 more days and that one also came out negative. Now I am currently 3 days late for my period and I have no idea what to think or what my next step should be...?