I bought two cow/calf pairs this past May 5th and have been watching both so as to AI. One calved on 2/24 and the other on 2/28. It looks like I was successful on the first one but cannot tell if the other went into heat despite putting markers on her. There have been no signs of the other cattle riding and I have not seen her with the typical muddy sides. Is there a pregnancy test I can give or have done? I don't want to miss the opportunity to breed her and I don't know if giving her sync. shots would hurt the possible fetus. The previous owner said a bull could have got her the week before I purchased but can't trust this answer.