Its be 4months I hav gotten my length but for the later 3weeks I hold throw up everything can I be pregnant?

Its been 4 months since I own had sex and near in those 4 months I hold gotten my period but for the lasy 3 weeks I've be throwing up contineuosly my bf scared that I might be pregnant but what do u reason ... I also saw my doctor cuz I was sick basis of a bad cold could that alsl be the root why I'm throwing up or is it that I'm pregnant it doesn't look like I'm gettin bigger or ne item Stress, illness, medication & immensity loss can affect your hormones, thus changing your cycle. I would pocket an OTC pregnancy test to be sure.
Why haven't you be to a doctor or at the least taken a pregnancy trial?