I am 26 weeks pregnant today i have 3 born sons already but never experienced this before with their pregnancy and know every pregnancy is different but trying to find out why this happened today. So getting to point me and my husband had sex normal way wasnt painful or anything, afterwards went to bathroom come back to sit down on couch got really bad cramping and thighing in lower stomach i figured b.hicks but lasted bit longer and started getting very sick feeling went to bathroom cause knew was going to get sick i throw up along with having cramps after that i layed down on bed for about 5-10 mins and was fine. Has anyone had this happen and what was reason or why did this happen to me. Please let me know..